qdk_chemistry.plugins.qiskit.qubit_mapper module

Qiskit-based qubit mappers to map electronic structure Hamiltonians to qubit Hamiltonians.

This module provides a QiskitQubitMapper class to convert Hamiltonians to QubitHamiltonians using different mapping strategies (“jordan-wigner”, “bravyi-kitaev”, and “parity”).

class qdk_chemistry.plugins.qiskit.qubit_mapper.QiskitQubitMapper(encoding='jordan-wigner')

Bases: QubitMapper

Map an electronic structure Hamiltonian to a QubitHamiltonian using Qiskit.

Available encodings:

• "jordan-wigner" (default)

• "bravyi-kitaev"

• "parity"

Parameters:

encoding (str)

QubitMappers: ClassVar = {'bravyi-kitaev': qiskit_nature.second_q.mappers.BravyiKitaevMapper, 'jordan-wigner': qiskit_nature.second_q.mappers.JordanWignerMapper, 'parity': qiskit_nature.second_q.mappers.ParityMapper}

__init__(encoding='jordan-wigner')

Initialize QiskitQubitMapper with a specific mapping strategy.

Parameters:

encoding (str) – Qubit mapping strategy to use (“jordan-wigner”, “bravyi-kitaev”, or “parity”). Default: “jordan-wigner”.

name()

Return the algorithm name qiskit.

Return type:

str

class qdk_chemistry.plugins.qiskit.qubit_mapper.QiskitQubitMapperSettings

Bases: QubitMapperSettings

Settings configuration for a QiskitQubitMapper.

Inherits encoding from QubitMapperSettings.

Available encodings:

• "jordan-wigner" (default)

• "bravyi-kitaev"

• "parity"

__init__()

Initialize QiskitQubitMapperSettings.