qc2.ansatz.qiskit.gate_fabric

Classes

GateFabric

Gate Fabric ansatz implementation for Qiskit.

Module Contents

class qc2.ansatz.qiskit.gate_fabric.GateFabric(num_spatial_orbitals: int, num_particles: tuple, qubit_mapper: qiskit_nature.second_q.mappers.QubitMapper, initial_state: qiskit.circuit.QuantumCircuit | None = None, num_layers: int = 1, include_pi: bool = False, name: str | None = 'GateFabric')

Bases: qiskit.circuit.library.blueprintcircuit.BlueprintCircuit

Gate Fabric ansatz implementation for Qiskit.

_num_qubits

_num_spatial_orbitals

_num_particles

_qubit_mapper

_num_layers = 1

_include_pi = False

_initial_state

property qubit_mapper: qiskit_nature.second_q.mappers.QubitMapper | None

The qubit operator mapper.

property num_qubits: int

The number of qubits.

property num_spatial_orbitals: int

The number of spatial orbitals.

property num_particles: tuple[int, int]

The number of particles.

_check_configuration(raise_on_failure: bool = True) → bool

Check if the configuration of the NLocal class is valid.

Parameters:

raise_on_failure – Whether to raise on failure.

Returns:

True, if the configuration is valid and the circuit can be constructed. Otherwise an ValueError is raised.

Raises:

• ValueError – If the numbr fo qubit is not set.

• ValueError – If the number of spatial orbitals is lower than the number of particles

_build() → None

Builds the Gate Fabric circuit

_gate_fabric_layer(circuit: qiskit.circuit.QuantumCircuit, parameters: list, wires: list) → None

Implements a single layer of Gate Fabric

_orbital_rotation(circuit: qiskit.circuit.QuantumCircuit, theta: qiskit.circuit.Parameter, qubits: list) → None

Implements the orbital rotation gate

_double_excitation(circuit: qiskit.circuit.QuantumCircuit, phi: qiskit.circuit.Parameter, qubits: list) → None

Implements the double excitation gate