PyQrack

https://pyqrack.readthedocs.io/en/latest/
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PyQrack is a pure Python ctypes wrapper on the C++11 Qrack library, designed for quantum computing...
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### prob_all(q)

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/qrack_simulator/index.html

Get the probabilities of all permutations of the subset.

```APIDOC
## prob_all(q)

### Description
Probabilities of all subset permutations.

### Parameters
- **q** (list) - List of qubit ids

### Returns
- **list** - List representing the state vector

### Errors
- **RuntimeError** - QrackSimulator raised an exception.
```

--------------------------------

### QrackSimulator Constructor

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/qrack_simulator/index.html

Initializes a new QrackSimulator instance with specified configuration parameters.

```APIDOC
## QrackSimulator(qubit_count, clone_sid, is_schmidt_decompose_multi, is_stabilizer_hybrid, is_binary_decision_tree, is_gpu, is_host_pointer, is_sparse, is_near_clifford_tableau_writer, noise, pyzx_circuit, qiskit_circuit)

### Description
Initializes the simulator interface for Qrack functionality.

### Parameters
- **qubit_count** (int) - Optional - Number of qubits.
- **is_gpu** (bool) - Optional - Whether to use GPU acceleration.
- **noise** (float) - Optional - Noise level.
```

--------------------------------

### QrackCircuit.run(qsim)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/index.rst.txt

Executes the circuit on a simulator.

```APIDOC
## QrackCircuit.run(qsim)

### Description
Runs the defined circuit on the provided simulator instance.
```

--------------------------------

### prob(q)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_simulator/index.rst.txt

Get the probability that a qubit is in the |1> state.

```APIDOC
## prob(q)

### Description
Get the probability that a qubit is in the |1> state.

### Parameters
- **q** (int) - Required - Qubit id

### Returns
- **float** - Probability of qubit being in |1>

### Errors
- **RuntimeError** - QrackSimulator raised an exception.
```

--------------------------------

### prob_rdm(q)

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/index.html

Gets the probability that a qubit is in the |1> state via RDM.

```APIDOC
## prob_rdm(q)

### Description
Get the probability that a qubit is in the |1> state, tracing out the reduced density matrix.

### Parameters
- **q** (int) - Required - Qubit ID.

### Returns
- (float) - Probability of qubit being in |1>.
```

--------------------------------

### QrackCircuit.run

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_circuit/index.rst.txt

Executes the defined circuit on a provided QrackSimulator instance.

```APIDOC
## run(qsim)

### Description
Runs the encoded circuit on the specified simulator.

### Parameters
- **qsim** (QrackSimulator) - Required - The simulator instance to execute the circuit on.
```

--------------------------------

### run_pyzx_gates(gates)

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/index.html

Converts PYZX gates to a QRackSimulator and executes them immediately.

```APIDOC
## run_pyzx_gates(gates)

### Description
Executes a list of PYZX gates on the QRackSimulator.

### Parameters
- **gates** (list) - Required - A list of PYZX gates to execute.

### Raises
- **RuntimeError** - Raised if the QrackSimulator encounters an exception.
```

--------------------------------

### permutation_expectation(q)

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/qrack_simulator/index.html

Get the permutation expectation value, based upon the order of input qubits.

```APIDOC
## permutation_expectation(q)

### Description
Permutation expectation value.

### Parameters
- **q** (list) - Qubits, from low to high

### Returns
- **float** - Expectation value

### Errors
- **RuntimeError** - QrackSimulator raised an exception.
```

--------------------------------

### prob_perm(q, c)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_simulator/index.rst.txt

Get the probability that the qubit IDs in 'q' have the truth values in 'c'.

```APIDOC
## prob_perm(q, c)

### Description
Get the probability that the qubit IDs in 'q' have the truth values in 'c', directly corresponding by list index.

### Parameters
- **q** (list) - Required - List of qubit ids
- **c** (list) - Required - List of qubit truth values bools

### Returns
- **float** - Probability that each qubit in 'q[i]' has corresponding truth value in 'c[i]'

### Errors
- **RuntimeError** - QrackSimulator raised an exception.
```

--------------------------------

### QrackNearCliffordQecBackend Constructor

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_near_clifford_qec_backend/index.rst.txt

Initializes a new instance of the QrackNearCliffordQecBackend class.

```APIDOC
## QrackNearCliffordQecBackend(qubit_count=1, code_len=5, layers_per_qec_round=0, is_eager=True, to_clone=None)

### Description
Initializes the near-Clifford quantum error correction back end.

### Parameters
- **qubit_count** (int) - Optional - Number of qubits.
- **code_len** (int) - Optional - Length of the repetition code.
- **layers_per_qec_round** (int) - Optional - Number of layers per QEC round.
- **is_eager** (bool) - Optional - Whether to use eager execution.
- **to_clone** (object) - Optional - Instance to clone from.
```

--------------------------------

### run_qiskit_circuit(experiment, shots=1)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_simulator/index.rst.txt

Executes a Qiskit circuit using the Qrack simulator.

```APIDOC
## run_qiskit_circuit(experiment, shots=1)

### Description
Executes a provided Qiskit circuit experiment on the Qrack simulator for a specified number of shots.

### Parameters
- **experiment** (object) - The Qiskit circuit experiment to run.
- **shots** (int) - The number of times to execute the circuit (default: 1).
```

--------------------------------

### Configuration Methods

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_simulator/index.rst.txt

Methods for configuring the simulator environment.

```APIDOC
## set_concurrency(p)
Sets the CPU parallel thread count.

## set_device(d)
Sets the GPU device ID.

## seed(s)
Sets the random seed for the simulator.
```

--------------------------------

### learn_cycle(e=True)

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/index.html

Runs a full learning cycle.

```APIDOC
## learn_cycle(e=True)

### Description
A learning cycle consists of predicting a result, saving the classical outcome, and uncomputing the prediction.

### Parameters
- **e** (bool) - Optional - If False, predict the opposite

### Raises
- **RuntimeError** - QrackNeuron C++ library raised an exception.
```

--------------------------------

### QrackSimulator

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_simulator/index.rst.txt

The primary interface for Qrack quantum simulation functionality.

```APIDOC
## QrackSimulator(qubit_count, ...)

### Description
Initializes a new Qrack simulator instance.

### Parameters
- **qubit_count** (int) - Number of qubits.
- **is_gpu** (bool) - Whether to use GPU acceleration.
- **noise** (float) - Noise level for the simulation.
```

--------------------------------

### m_all()

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/qrack_simulator/index.html

Measures all qubits in the simulator.

```APIDOC
## m_all()

### Description
Measure-all gate. Measures all qubits. This operator is not unitary & is probabilistic in nature.

### Returns
- Measurement result of all qubits.

### Errors
- **RuntimeError** - QrackSimulator raised an exception.
```

--------------------------------

### QrackSystem

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_system/index.rst.txt

The QrackSystem class is the primary interface for managing the quantum simulation environment.

```APIDOC
## class QrackSystem

### Description
Represents the core system for Qrack quantum simulations.

### Attributes
- **fppow** (int) - Default value: 5
```

--------------------------------

### Simulator Configuration

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/qrack_simulator/index.html

Methods for configuring simulator settings like concurrency and device selection.

```APIDOC
## set_concurrency(p)

### Description
Sets the CPU parallel thread count.

## set_device(d)

### Description
Sets the GPU device ID.
```

--------------------------------

### QrackStabilizer Constructor

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_stabilizer/index.rst.txt

Initializes a new QrackStabilizer instance.

```APIDOC
## QrackStabilizer(qubit_count=-1, clone_sid=-1, pyzx_circuit=None, qiskit_circuit=None)

### Description
Initializes the QrackStabilizer interface for pure-stabilizer functionality.

### Parameters
- **qubit_count** (int) - Optional - Number of qubits.
- **clone_sid** (int) - Optional - Simulator ID to clone.
- **pyzx_circuit** (object) - Optional - PyZX circuit input.
- **qiskit_circuit** (object) - Optional - Qiskit circuit input.
```

--------------------------------

### QrackCircuit.clone()

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/index.rst.txt

Creates an exact clone of the current circuit instance.

```APIDOC
## QrackCircuit.clone()

### Description
Creates a new circuit instance that is an exact clone of the current circuit.

### Raises
- **RuntimeError** - QrackCircuit C++ library raised an exception.
```

--------------------------------

### QrackSystem Class

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_system/qrack_system/index.rst.txt

The QrackSystem class provides the primary interface for interacting with the quantum system. It includes configuration attributes such as fppow.

```APIDOC
## Class: QrackSystem

### Description
Represents the quantum system interface in pyqrack. This class is used to initialize and manage system-level quantum parameters.

### Attributes
- **fppow** (int) - A configuration attribute for the system, default value is 5.
```

--------------------------------

### run_qiskit_circuit

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_near_clifford_qec_backend/index.rst.txt

Executes a Qiskit circuit on the backend.

```APIDOC
## run_qiskit_circuit(experiment, shots=1)

### Description
Runs a provided Qiskit experiment circuit on the backend for a specified number of shots.
```

--------------------------------

### QrackNeuron.clone()

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/index.rst.txt

Creates an independent clone of the current QrackNeuron instance with identical configuration.

```APIDOC
## clone()

### Description
Clones this neuron. Create a new, independent neuron instance with identical angles, inputs, output, and tolerance, for the same QrackSimulator.

### Exceptions
- **RuntimeError** - QrackNeuron C++ library raised an exception.
```

--------------------------------

### file_to_qiskit_circuit(is_hardware_encoded=False)

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/qrack_simulator/index.html

Converts an output state file to a Qiskit circuit.

```APIDOC
## file_to_qiskit_circuit(is_hardware_encoded=False)

### Description
Reads in an optimized circuit from a file and outputs a Qiskit circuit.

### Parameters
- **filename** (str) - Required - Name of the file.

### Raises
- **RuntimeError** - Requires Qiskit, numpy, and math to be installed.
```

--------------------------------

### run_pyzx_gates(gates)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_simulator/index.rst.txt

Executes a list of PYZX gates on the simulator.

```APIDOC
## run_pyzx_gates(gates)

### Description
Converts PYZX gates to QRackSimulator operations and immediately executes them.

### Parameters
- **gates** (list) - Required - List of PYZX gates

### Errors
- **RuntimeError** - QrackSimulator raised an exception.
```

--------------------------------

### file_to_qiskit_circuit(filename)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_circuit/index.rst.txt

Converts an optimized circuit file to a Qiskit circuit.

```APIDOC
## file_to_qiskit_circuit(filename)

### Description
Reads in an optimized circuit from a file and outputs a Qiskit circuit.

### Parameters
- **filename** (string) - Required - Name of file

### Exceptions
- **RuntimeError** - Requires Qiskit, numpy, and math to be installed.
```

--------------------------------

### load_data(sim, index_bits, value_bits, data)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/stats/load_quantized_data/index.rst.txt

Loads discretized features from quantize_by_range into a QrackSimulator.

```APIDOC
## load_data(sim, index_bits, value_bits, data)

### Description
Takes discretized features from quantize_by_range and loads them into a QrackSimulator.

### Parameters
- **sim** (QrackSimulator) - Required - Simulator into which to load data.
- **index_bits** (list[int]) - Required - List of index bits, least-to-most significant.
- **value_bits** (list[int]) - Required - List of value bits, least-to-most significant.
- **data** (list[list[bool]]) - Required - Data to load, row-major.

### Errors
- **ValueError** - Raised if the length of value_bits does not match the data feature column count.
```

--------------------------------

### QrackNeuron.set_simulator(s, controls=None, target=None)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/index.rst.txt

Configures the simulator and qubit identifiers for the neuron.

```APIDOC
## set_simulator(s, controls=None, target=None)

### Description
Set the simulator used by this neuron.

### Parameters
- **s** (QrackSimulator) - Required - The simulator to use
- **controls** (list[int]) - Optional - The control qubit IDs to use
- **target** (int) - Optional - The output qubit ID to use

### Exceptions
- **RuntimeError** - QrackSimulator raised an exception.
```

--------------------------------

### Static Helper Methods

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_neuron/index.rst.txt

Utility methods for data processing including quantile calculation, discretization, and matrix manipulation.

```APIDOC
### quantile_bounds(vec, bits)
- **vec**: numerical vector
- **bits**: log2() of quantile count
- **Returns**: Quantile (n + 1) bounds.

### discretize(vec, bounds)
- **vec**: numerical vector
- **bounds**: (n + 1) n-quantile bounds
- **Returns**: Discretized bit-row vector.

### flatten_and_transpose(arr)
- **arr**: bit-row matrix
- **Returns**: Observation-row matrix with flat feature columns.

### bin_endpoints_average(bounds)
- **bounds**: (n + 1) n-quantile bounds
- **Returns**: List of average points between bin endpoints.
```

--------------------------------

### in_from_file(filename)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/index.rst.txt

Reads an optimized circuit from a file.

```APIDOC
## in_from_file(filename)

### Description
Reads in an (optimized) circuit from a file named according to the "filename" parameter.

### Parameters
- **filename** (string) - Required - Name of file
```

--------------------------------

### file_to_quimb_circuit(filename, ...)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_circuit/index.rst.txt

Converts an optimized circuit file to a Quimb circuit.

```APIDOC
## file_to_quimb_circuit(filename, circuit_type=QuimbCircuitType.Circuit, psi0=None, gate_opts=None, tags=None, psi0_dtype='complex128', psi0_tag='PSI0', bra_site_ind_id='b{}')

### Description
Reads in an optimized circuit from a file and outputs a Quimb circuit.

### Parameters
- **filename** (string) - Required - Name of file
- **circuit_type** (QuimbCircuitType) - Optional - Type of Quimb circuit
- **psi0** (any) - Optional - Initial state
- **gate_opts** (dict) - Optional - Default keyword arguments for gate_TN_1D
- **tags** (list) - Optional - Tags to add to initial wavefunction tensors
- **psi0_dtype** (string) - Optional - Dtype for initial state
- **psi0_tag** (string) - Optional - Tag for initial state
- **bra_site_ind_id** (string) - Optional - Label for bra site indices
```

--------------------------------

### m(lq), force_m(lq, result), m_all()

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_ace_backend/index.rst.txt

Measurement operations.

```APIDOC
## Measurement

### Description
Performs measurements on qubits. `m` measures a single qubit, `force_m` forces a measurement result, and `m_all` measures all qubits.

### Parameters
- **lq** (int) - Logical qubit index
- **result** (int) - Forced measurement result
```

--------------------------------

### file_to_tensorcircuit(filename, ...)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_circuit/index.rst.txt

Converts an optimized circuit file to a TensorCircuit circuit.

```APIDOC
## file_to_tensorcircuit(filename, inputs=None, circuit_params=None, binding_params=None)

### Description
Reads in an optimized circuit from a file and outputs a TensorCircuit circuit.

### Parameters
- **filename** (string) - Required - Name of file
- **inputs** (any) - Optional - Pass-through to tensorcircuit.Circuit.from_qiskit
- **circuit_params** (any) - Optional - Pass-through to tensorcircuit.Circuit.from_qiskit
- **binding_params** (any) - Optional - Pass-through to tensorcircuit.Circuit.from_qiskit
```

--------------------------------

### learn(eta, e=True, r=True)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_neuron/index.rst.txt

Learns to associate current inputs with output by updating synaptic parameters based on volatility 'eta'.

```APIDOC
### Method: learn(eta, e=True, r=True)

- **eta** (double): Training volatility, 0 to 1.
- **e** (bool): If False, predict the opposite.
- **r** (bool): If True, start by resetting the output to 50/50.
- **Raises**: RuntimeError if the QrackNeuron C++ library raises an exception.
```

--------------------------------

### in_from_file(...)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/index.rst.txt

Inputs a stabilizer state from a file.

```APIDOC
## in_from_file(is_binary_decision_tree=False, is_gpu=True, is_host_pointer=False, is_sparse=False, is_near_clifford_tableau_writer=False, noise=0)

### Description
Reads a hybrid stabilizer state from a file.

### Parameters
- **is_binary_decision_tree** (bool) - Optional - Use binary decision tree.
- **is_gpu** (bool) - Optional - Use GPU.
- **is_host_pointer** (bool) - Optional - Use host pointer.
- **is_sparse** (bool) - Optional - Use sparse representation.
- **is_near_clifford_tableau_writer** (bool) - Optional - Use near-Clifford tableau writer.
- **noise** (float) - Optional - Noise level.
```

--------------------------------

### separate(qs)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_simulator/index.rst.txt

Forces manual multi-qubit separation.

```APIDOC
### Method
separate(qs)

### Description
Force separation as per try_separate_tolerance.

### Parameters
- **qs** (list) - List of qubits to be decomposed
```

--------------------------------

### swap(lq1, lq2), iswap(lq1, lq2), adjiswap(lq1, lq2)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_ace_backend/index.rst.txt

Applies swap operations.

```APIDOC
## Swap Gates

### Description
Applies swap or iSwap operations between two logical qubits.

### Parameters
- **lq1** (int) - Qubit index
- **lq2** (int) - Qubit index
```

--------------------------------

### out_to_file(filename)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/index.rst.txt

Outputs the optimized circuit to a specified file.

```APIDOC
## out_to_file(filename)

### Description
Outputs the (optimized) circuit to a file named according to the "filename" parameter.

### Parameters
- **filename** (string) - Required - Name of file
```

--------------------------------

### mcexp(b, ph, cs, q)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_simulator/index.rst.txt

Multi-controlled arbitrary exponentiation. If all controlled qubits are |1>, the target qubit is exponentiated in the Pauli basis with the given coefficient.

```APIDOC
## mcexp(b, ph, cs, q)

### Description
Multi-controlled arbitrary exponentiation. If all controlled qubits are |1>, the target qubit is exponentiated in the Pauli basis with the given coefficient.

### Parameters
- **b** (Pauli basis) - Pauli basis
- **ph** (float) - coefficient of exponentiation
- **cs** (list) - list of controlled qubits
- **q** (int) - the qubit number on which the gate is applied

### Errors
- **RuntimeError**: QrackSimulator raised an exception.
```

--------------------------------

### dump()

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/index.html

Dumps the state vector from the selected simulator.

```APIDOC
## dump()

### Description
Dump state vector from the selected simulator ID into the callback.

### Returns
- (list) - State vector list.
```

--------------------------------

### add(a, q)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_simulator/index.rst.txt

Adds the given integer to the given set of qubits.

```APIDOC
## add(a, q)

### Description
Adds the given integer to the given set of qubits.

### Parameters
- **a** (int) - number to add
- **q** (list) - list of qubits to add the number to
```

--------------------------------

### QrackCircuit Class

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/qrack_circuit/index.html

The QrackCircuit class allows the user to specify a unitary circuit before running it on a QrackSimulator.

```APIDOC
## QrackCircuit

### Constructor
`QrackCircuit(is_collapse=True, is_near_clifford=False, clone_cid=-1, is_inverse=False, past_light_cone=[])`

### Methods
- **clone()**: Returns a new QrackCircuit that is an exact clone of this circuit.
- **inverse()**: Returns a new QrackCircuit that is the exact inverse of this circuit.
- **past_light_cone(q)**: Returns a new circuit containing only the past light cone for the specified qubits.
- **get_qubit_count()**: Returns the number of qubits in the circuit.
- **swap(q1, q2)**: Adds a 'Swap' gate to the circuit.
- **mtrx(m, q)**: Applies an arbitrary operation defined by the provided 2x2 matrix `m` to qubit `q`.
- **ucmtrx(c, m, q, p)**: Applies a multi-controlled single-target-qubit gate.
- **run(qsim)**: Executes the circuit on the provided `QrackSimulator`.
- **out_to_file(filename)**: Exports the optimized circuit to a file.
- **out_to_string()**: Returns the optimized circuit as a string.
- **to_qiskit_circuit()**: Converts the circuit to a Qiskit circuit object.

### Static Methods
- **in_from_file(filename)**: Reads an optimized circuit from a file.
- **file_gate_count(filename)**: Returns the number of gates in a circuit file.
- **file_to_qiskit_circuit(filename)**: Reads a circuit file and converts it to a Qiskit circuit.
```

--------------------------------

### out_to_file(filename)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/index.rst.txt

Outputs the stabilizer state to a file.

```APIDOC
## out_to_file(filename)

### Description
Writes the current hybrid stabilizer state to the specified file.

### Parameters
- **filename** (str) - Required - The path to the output file.
```

--------------------------------

### file_to_tensorcircuit

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/qrack_circuit/index.html

Converts an optimized circuit file into a TensorCircuit circuit.

```APIDOC
## static file_to_tensorcircuit(filename, inputs=None, circuit_params=None, binding_params=None)

### Description
Reads in an optimized circuit from a file and outputs a TensorCircuit circuit.

### Parameters
- **filename** (string) - Required - Name of file
- **inputs** (any) - Optional - Pass-through to tensorcircuit.Circuit.from_qiskit
- **circuit_params** (any) - Optional - Pass-through to tensorcircuit.Circuit.from_qiskit
- **binding_params** (any) - Optional - Pass-through to tensorcircuit.Circuit.from_qiskit

### Raises
- **RuntimeError** - Raised if TensorCircuit, Qiskit, numpy, or math are not installed.
```

--------------------------------

### QrackNearCliffordQecBackend

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/qrack_near_clifford_qec_backend/index.html

A back end for near-Clifford quantum error correction that uses repetition code on a near-Clifford simulator to emulate a utility-scale superconducting chip quantum computer.

```APIDOC
## class QrackNearCliffordQecBackend(qubit_count=1, code_len=5, layers_per_qec_round=0, is_eager=True, to_clone=None)

### Description
Initializes a back end for near-Clifford quantum error correction.

### Parameters
- **qubit_count** (int) - Optional - Number of qubits.
- **code_len** (int) - Optional - Length of the repetition code.
- **layers_per_qec_round** (int) - Optional - Number of layers per QEC round.
- **is_eager** (bool) - Optional - Whether to use eager execution.
- **to_clone** (QrackNearCliffordQecBackend) - Optional - Instance to clone.
```

--------------------------------

### out_to_file(filename)

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/qrack_simulator/index.html

Outputs the hybrid stabilizer state to a file.

```APIDOC
## out_to_file(filename)

### Description
Outputs the hybrid stabilizer state to a file.

### Parameters
- **filename** (str) - Required - Name of the file.
```

--------------------------------

### QrackCircuit Methods

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/index.html

Methods available on the QrackCircuit class for circuit manipulation and execution.

```APIDOC
## QrackCircuit.clone()
### Description
Creates a new circuit that is an exact clone of the current circuit.

## QrackCircuit.inverse()
### Description
Creates a new circuit that is the exact inverse of the current circuit.

## QrackCircuit.past_light_cone(q)
### Description
Creates a new circuit containing only the past light cone for the specified qubits.
### Parameters
- **q** (list) - Required - List of qubit indices.

## QrackCircuit.swap(q1, q2)
### Description
Adds a 'Swap' gate to the circuit.
### Parameters
- **q1** (int) - Required - Qubit index #1
- **q2** (int) - Required - Qubit index #2

## QrackCircuit.mtrx(m, q)
### Description
Applies an arbitrary operation defined by the given matrix to a specific qubit.
### Parameters
- **m** (list) - Required - Row-major complex list representing the operator.
- **q** (int) - Required - Target qubit index.

## QrackCircuit.run(qsim)
### Description
Executes the encoded circuit on the provided QrackSimulator.
### Parameters
- **qsim** (QrackSimulator) - Required - The simulator instance to run the circuit on.
```

--------------------------------

### learn(eta, e=True, r=True)

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/index.html

Updates synaptic parameters based on current qubit state.

```APIDOC
## learn(eta, e=True, r=True)

### Description
Learn to associate current inputs with output based on input qubit states and volatility 'eta'.

### Parameters
- **eta** (double) - Required - Training volatility, 0 to 1
- **e** (bool) - Optional - If False, predict the opposite
- **r** (bool) - Optional - If True, start by resetting the output to 50/50

### Raises
- **RuntimeError** - QrackSimulator raised an exception.
```

--------------------------------

### in_from_file(...)

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/qrack_simulator/index.html

Reads in a hybrid stabilizer state from a file.

```APIDOC
## in_from_file(is_binary_decision_tree=False, is_gpu=True, is_host_pointer=..., is_sparse=False, is_near_clifford_tableau_writer=False, noise=0)

### Description
Reads in a hybrid stabilizer state from a file.

### Parameters
- **filename** (str) - Required - Name of the file.
```

--------------------------------

### file_to_optimized_qiskit_circuit

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/index.rst.txt

Converts an output state file to a hyper-optimized Qiskit circuit.

```APIDOC
## file_to_optimized_qiskit_circuit()

### Description
Reads in a circuit from a file and outputs a 'hyper-optimized' Qiskit circuit that favors maximum reduction in gate count and depth.

### Raises
- **RuntimeError** - Requires Qiskit, numpy, and math to be installed.
```

--------------------------------

### in_from_tensorcircuit

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/qrack_circuit/index.html

Converts a TensorCircuit circuit into a QrackCircuit.

```APIDOC
## static in_from_tensorcircuit(tcirc, enable_instruction=False, enable_inputs=False)

### Description
Accepts a TensorCircuit circuit and outputs an equivalent QrackCircuit.

### Parameters
- **tcirc** (TensorCircuit) - Required - TensorCircuit circuit
- **enable_instruction** (bool) - Optional - Whether to export measurement and reset instructions
- **enable_inputs** (bool) - Optional - Whether to export the inputs

### Raises
- **RuntimeError** - Raised if TensorCircuit, Qiskit, numpy, or math are not installed.
```

--------------------------------

### file_to_quimb_circuit

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/qrack_circuit/index.html

Converts an optimized circuit file into a Quimb circuit representation.

```APIDOC
## static file_to_quimb_circuit(filename, circuit_type=QuimbCircuitType.Circuit, psi0=None, gate_opts=None, tags=None, psi0_dtype='complex128', psi0_tag='PSI0', bra_site_ind_id='b{}')

### Description
Reads in an optimized circuit from a file and outputs a Quimb circuit.

### Parameters
- **filename** (string) - Required - Name of file
- **circuit_type** (QuimbCircuitType) - Optional - Enum value specifying type of Quimb circuit
- **psi0** (any) - Optional - The initial state
- **gate_opts** (dict) - Optional - Default keyword arguments for gate_TN_1D
- **tags** (list) - Optional - Tags to add to initial wavefunction tensors
- **psi0_dtype** (string) - Optional - Dtype for initial state
- **psi0_tag** (string) - Optional - Tag for initial state
- **bra_site_ind_id** (string) - Optional - Label for bra site indices

### Raises
- **RuntimeError** - Raised if quimb, Qiskit, numpy, or math are not installed.
```

--------------------------------

### mcx(c, q)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_simulator/index.rst.txt

Multi-controlled X gate.

```APIDOC
## mcx(c, q)

### Description
If all controlled qubits are |1>, the target qubit is flipped.

### Parameters
- **c** (list) - List of controlled qubits
- **q** (int) - Target qubit

### Errors
- **RuntimeError**: QrackSimulator raised an exception.
```

--------------------------------

### dump()

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_simulator/index.rst.txt

Dumps the state vector from the selected simulator ID into the callback.

```APIDOC
## dump()

### Description
Dump state vector from the selected simulator ID into the callback.

### Returns
- **list** - State vector list
```

--------------------------------

### QrackSimulator.x(q)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/index.rst.txt

Applies the Pauli X gate (logical NOT) to the specified qubit.

```APIDOC
## QrackSimulator.x(q)

### Description
Applies the Pauli X operator to the qubit at position q. This is equivalent to a logical NOT gate.

### Parameters
- **q** (int) - Required - The qubit index on which the gate is applied.

### Errors
- **RuntimeError** - Raised if the underlying QrackSimulator encounters an exception.
```

--------------------------------

### QrackNeuronTorchLayer

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/qrack_neuron_torch_layer/index.html

A PyTorch layer wrapper for QrackNeuron, providing a maximally expressive set of neurons between inputs and outputs.

```APIDOC
## class QrackNeuronTorchLayer(input_qubits, output_qubits, hidden_qubits=None, lowest_combo_count=0, highest_combo_count=2, activation=int(NeuronActivationFn.Generalized_Logistic), parameters=None, post_init_fn=dummy_post_init_fn, **kwargs)

### Description
Torch layer wrapper for QrackNeuron. This layer manages a set of QrackNeuronTorch wrappers and provides the necessary infrastructure for quantum-classical hybrid neural network training.

### Parameters
- **input_qubits** (list[int]) - Required - Simulator qubit indices used as QrackNeuron inputs.
- **output_qubits** (list[int]) - Required - Simulator qubit indices used as QrackNeuron outputs.
- **hidden_qubits** (list[int]) - Optional - Simulator qubit indices used as QrackNeuron hidden inputs.
- **lowest_combo_count** (int) - Optional - Minimum combination count for neuron expression.
- **highest_combo_count** (int) - Optional - Maximum combination count for neuron expression.
- **activation** (int) - Optional - Activation function identifier.
- **parameters** (Tensor) - Optional - Initial parameters for the layer.
- **post_init_fn** (Callable) - Optional - Function applied after forward state initialization.

### Methods
- **forward(x)**: Performs the forward pass of the quantum layer.
```

--------------------------------

### learn_cycle(e=True)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_neuron/index.rst.txt

Runs a learning cycle consisting of predicting a result, saving the classical outcome, and uncomputing the prediction.

```APIDOC
### Method: learn_cycle(e=True)

- **e** (bool): If False, predict the opposite.
- **Raises**: RuntimeError if the QrackNeuron C++ library raises an exception.
```

--------------------------------

### in_ket(ket)

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/index.html

Sets the state vector for the selected simulator.

```APIDOC
## in_ket(ket)

### Description
Set state vector for the selected simulator ID.

### Parameters
- **ket** (list) - Required - The state vector to which simulator will be set.
```

--------------------------------

### string_to_qiskit_circuit

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/qrack_circuit/index.html

Converts an optimized circuit string representation into a Qiskit QuantumCircuit object.

```APIDOC
## static string_to_qiskit_circuit(circ_string)

### Description
Reads in an optimized circuit from a string parameter and outputs a Qiskit circuit.

### Parameters
- **circ_string** (string) - Required - String representation of circuit

### Raises
- **RuntimeError** - Raised if Qiskit, numpy, or math are not installed.
```

--------------------------------

### out_to_string()

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/index.rst.txt

Outputs the optimized circuit to a string.

```APIDOC
## out_to_string()

### Description
Outputs the (optimized) circuit to a string.
```

--------------------------------

### QrackNeuronTorch

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_neuron_torch_layer/index.rst.txt

A PyTorch module wrapper for a single QrackNeuron instance.

```APIDOC
## QrackNeuronTorch(neuron, x)

### Description
Wraps a QrackNeuron instance to be used as a PyTorch module.

### Attributes
- **neuron** (QrackNeuron) - The underlying QrackNeuron instance.
- **weights** (Parameter) - The weights associated with the neuron.
```

--------------------------------

### cx(lq1, lq2), cy(lq1, lq2), cz(lq1, lq2)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_ace_backend/index.rst.txt

Applies controlled Pauli gates.

```APIDOC
## Controlled Pauli Gates

### Description
Applies controlled-X, controlled-Y, or controlled-Z gates between two logical qubits.

### Parameters
- **lq1** (int) - Control qubit index
- **lq2** (int) - Target qubit index
```

--------------------------------

### QrackNeuronTorchLayer

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_neuron_torch_layer/index.rst.txt

A PyTorch layer wrapper for QrackNeuron, supporting input/output qubit configuration and activation functions.

```APIDOC
## QrackNeuronTorchLayer(input_qubits, output_qubits, hidden_qubits=None, lowest_combo_count=0, highest_combo_count=2, activation=int(NeuronActivationFn.Generalized_Logistic), parameters=None, post_init_fn=dummy_post_init_fn, **kwargs)

### Description
Initializes a Torch layer wrapper for QrackNeuron, facilitating the use of quantum-inspired neurons within a PyTorch model.

### Parameters
- **input_qubits** (list[int]) - Qubit indices used as inputs.
- **output_qubits** (list[int]) - Qubit indices used as outputs.
- **hidden_qubits** (list[int], optional) - Qubit indices used as hidden inputs.
- **lowest_combo_count** (int) - Minimum combination count for neurons.
- **highest_combo_count** (int) - Maximum combination count for neurons.
- **activation** (int) - Activation function identifier.
- **parameters** (list, optional) - Initial parameters for the layer.
- **post_init_fn** (Callable) - Function applied after state initialization.

### Methods
- **forward(x)**: Performs the forward pass of the layer using the provided input tensor.
```

--------------------------------

### General Unitary and Matrix Operations

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/qrack_simulator/index.html

Methods for applying custom unitary gates and matrix-defined operations.

```APIDOC
## u(q, th, ph, la)

### Description
Applies a general unitary gate U(theta, phi, lambda).

### Parameters
- **q** (int) - Required - Qubit index.
- **th** (float) - Required - Theta.
- **ph** (float) - Required - Phi.
- **la** (float) - Required - Lambda.

## mtrx(m, q)

### Description
Applies an arbitrary operation defined by a 2x2 matrix.

### Parameters
- **m** (list) - Required - Row-major complex list representing the operator.
- **q** (int) - Required - Qubit index.
```

--------------------------------

### compose(other, q)

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/index.html

Composes the quantum description of a given qubit with the current system.

```APIDOC
## compose(other, q)

### Description
Compose quantum description of given qubit with the current system.

### Parameters
- **other** (object) - Required - The other system to compose.
- **q** (int) - Required - The qubit ID.
```

--------------------------------

### learn_permutation(eta, e=True, r=True)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_neuron/index.rst.txt

Learns to associate current inputs with output under the assumption that inputs and outputs are classical.

```APIDOC
### Method: learn_permutation(eta, e=True, r=True)

- **eta** (double): Training volatility, 0 to 1.
- **e** (bool): If False, predict the opposite.
- **r** (bool): If True, start by resetting the output to 50/50.
- **Raises**: RuntimeError if the QrackNeuron C++ library raises an exception.
```

--------------------------------

### QrackSimulator.z(q)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/index.rst.txt

Applies the Pauli Z gate to the specified qubit.

```APIDOC
## QrackSimulator.z(q)

### Description
Applies the Pauli Z operator to the qubit at position q. This flips the phase of the |1> state.

### Parameters
- **q** (int) - Required - The qubit index on which the gate is applied.
```

--------------------------------

### out_ket()

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_simulator/index.rst.txt

Returns the raw state vector of the simulator.

```APIDOC
## out_ket()

### Description
Returns the raw state vector of the simulator. Warning: State vector is not always the internal representation leading to sub-optimal performance of the method.

### Returns
- **list** - List representing the state vector.

### Errors
- **RuntimeError** - QrackSimulator raised an exception.
```

--------------------------------

### static quantile_bounds(vec, bits)

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/qrack_neuron/index.html

Calculates the quantile bounds of 2 ** bits worth of quantiles.

```APIDOC
## static quantile_bounds(vec, bits)

### Description
Calculate vector quantile bounds. This is a static helper method to calculate the quantile bounds of 2 ** bits worth of quantiles.

### Parameters
- **vec** (numerical vector) - Required - Input vector.
- **bits** (int) - Required - log2() of quantile count.

### Returns
- Quantile (n + 1) bounds for n-quantile division, including minimum and maximum values.
```

--------------------------------

### qft(qs) / iqft(qs)

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/index.html

Applies Quantum Fourier Transform or its inverse.

```APIDOC
## qft(qs) / iqft(qs)

### Description
Applies Quantum Fourier Transform or Inverse-quantum Fourier Transform on the provided list of qubits.

### Parameters
- **qs** (list) - List of qubits

### Errors
- **RuntimeError** - QrackSimulator raised an exception.
```

--------------------------------

### QrackCircuit.inverse()

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/index.rst.txt

Creates an inverse of the current circuit.

```APIDOC
## QrackCircuit.inverse()

### Description
Creates a new circuit instance that is the exact inverse of this circuit.

### Raises
- **RuntimeError** - QrackCircuit C++ library raised an exception.
```

--------------------------------

### qft(qs)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_simulator/index.rst.txt

Applies the Quantum Fourier Transform to a list of qubits.

```APIDOC
## qft(qs)

### Description
Applies Quantum Fourier Transform on the list of qubits provided.

### Parameters
- **qs**: list of qubits

### Errors
- **RuntimeError**: QrackSimulator raised an exception.
```

--------------------------------

### iqft(qs)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/index.rst.txt

Applies the Inverse-quantum Fourier Transform on the provided list of qubits.

```APIDOC
## iqft(qs)

### Description
Applies Inverse-quantum Fourier Transform on the list of qubits provided.

### Parameters
- **qs** (list) - Required - List of qubits

### Errors
- **RuntimeError** - Raised if QrackSimulator encounters an exception.
```

--------------------------------

### try_separate_2qb(qi1, qi2)

Source: https://pyqrack.readthedocs.io/en/latest/autoapi/pyqrack/qrack_simulator/index.html

Attempts to decompose two qubits for performance improvement.

```APIDOC
## try_separate_2qb(qi1, qi2)

### Description
Two-qubits counterpart of try_separate_1qb.

### Parameters
- **qi1** (int) - Required - First qubit to be decomposed.
- **qi2** (int) - Required - Second qubit to be decomposed.

### Returns
- **State** (object) - State of both the qubits.

### Errors
- **RuntimeError** - QrackSimulator raised an exception.
```

--------------------------------

### string_to_qiskit_circuit(circ_string)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_circuit/index.rst.txt

Converts an optimized circuit string to a Qiskit circuit.

```APIDOC
## string_to_qiskit_circuit(circ_string)

### Description
Reads in an optimized circuit from a string and outputs a Qiskit circuit.

### Parameters
- **circ_string** (string) - Required - String representation of circuit

### Exceptions
- **RuntimeError** - Requires Qiskit, numpy, and math to be installed.
```

--------------------------------

### num_qubits()

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_simulator/index.rst.txt

Returns the total number of qubits in the simulator.

```APIDOC
## num_qubits()

### Description
Returns the qubit count of the simulator.

### Returns
- Qubit count of the simulator

### Errors
- **RuntimeError**: QrackSimulator raised an exception.
```

--------------------------------

### adds(a, s, q)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_simulator/index.rst.txt

Performs signed addition of an integer to a set of qubits, handling overflow.

```APIDOC
## adds(a, s, q)

### Description
Signed addition of the given integer to the given set of qubits. If there is an overflow, the result becomes negative.

### Parameters
- **a** (int) - The number to add.
- **s** (int) - The qubit to store overflow.
- **q** (list) - The list of qubits to add the number to.

### Errors
- **RuntimeError**: Raised if the QrackSimulator encounters an exception.
```

--------------------------------

### in_from_tensorcircuit(tcirc, ...)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_circuit/index.rst.txt

Converts a TensorCircuit circuit to a QrackCircuit.

```APIDOC
## in_from_tensorcircuit(tcirc, enable_instruction=False, enable_inputs=False)

### Description
Accepts a TensorCircuit circuit and outputs an equivalent QrackCircuit.

### Parameters
- **tcirc** (any) - Required - TensorCircuit circuit
- **enable_instruction** (boolean) - Optional - Export measurement and reset instructions
- **enable_inputs** (boolean) - Optional - Export inputs
```

--------------------------------

### QrackCircuit.swap(q1, q2)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/index.rst.txt

Adds a Swap gate to the circuit.

```APIDOC
## QrackCircuit.swap(q1, q2)

### Description
Adds a 'Swap' gate to the circuit between two specified qubits.

### Parameters
- **q1** (int) - Qubit index #1
- **q2** (int) - Qubit index #2

### Raises
- **RuntimeError** - QrackCircuit C++ library raised an exception.
```

--------------------------------

### mcu(c, q, th, ph, la, gm=0.0)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_simulator/index.rst.txt

Multi-controlled arbitrary unitary gate.

```APIDOC
## mcu(c, q, th, ph, la, gm=0.0)

### Description
If all controlled qubits are |1>, the unitary gate described by parameters is applied to the target qubit.

### Parameters
- **c** (list) - List of controlled qubits
- **q** (int) - Target qubit
- **th** (float) - Theta
- **ph** (float) - Phi
- **la** (float) - Lambda
- **gm** (float) - Gamma (default 0.0)

### Errors
- **RuntimeError**: QrackSimulator raised an exception.
```

--------------------------------

### in_ket(ket)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_simulator/index.rst.txt

Sets the state vector for the selected simulator ID.

```APIDOC
## in_ket(ket)

### Description
Set state vector for the selected simulator ID. Warning: State vector is not always the internal representation leading to sub-optimal performance of the method.

### Parameters
- **ket** (list) - Required - The state vector to which simulator will be set

### Errors
- **RuntimeError** - QrackSimulator raised an exception.
```

--------------------------------

### Logical Gate Operations (qand, qor, qxor, qnand, qnor, qxnor)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/index.rst.txt

Performs standard logical operations on two qubits and stores the result in a target qubit.

```APIDOC
## Logical Gate Operations

### Description
Performs logical operations (AND, OR, XOR, NAND, NOR, XNOR) on two input qubits and stores the result in a target qubit.

### Parameters
- **qi1** (qubit) - First input qubit
- **qi2** (qubit) - Second input qubit
- **qo** (qubit) - Target qubit

### Errors
- **RuntimeError** - Raised if QrackSimulator fails.
```

--------------------------------

### QrackCircuit

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_circuit/index.rst.txt

The primary class for defining and managing a unitary quantum circuit.

```APIDOC
## QrackCircuit(is_collapse=True, is_near_clifford=False, clone_cid=-1, is_inverse=False, past_light_cone=[])

### Description
Initializes a new QrackCircuit instance to define a unitary circuit.

### Parameters
- **is_collapse** (bool) - Optional - Whether to enable collapse.
- **is_near_clifford** (bool) - Optional - Whether to enable near-clifford optimization.
- **clone_cid** (int) - Optional - ID of a circuit to clone.
- **is_inverse** (bool) - Optional - Whether the circuit is an inverse.
- **past_light_cone** (list) - Optional - List of qubit indices for the past light cone.
```

--------------------------------

### get_qiskit_basis_gates

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_near_clifford_qec_backend/index.rst.txt

Retrieves the basis gates supported by the backend for Qiskit integration.

```APIDOC
## get_qiskit_basis_gates()

### Description
Static method that returns the list of basis gates supported by this backend.
```

--------------------------------

### qand(qi1, qi2, qo)

Source: https://pyqrack.readthedocs.io/en/latest/_sources/autoapi/pyqrack/qrack_simulator/index.rst.txt

Performs a logical AND operation on two qubits.

```APIDOC
### qand(qi1, qi2, qo)

Logical AND of 2 qubits whose result is stored in the target qubit.

- **qi1** (int) - Qubit 1
- **qi2** (int) - Qubit 2
- **qo** (int) - Target qubit

**Raises:** RuntimeError if QrackSimulator raises an exception.
```
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