ffsim.qiskit.PrepareHartreeFockJW¶

class ffsim.qiskit.PrepareHartreeFockJW(norb, nelec, label=None)[source]¶

Bases: Gate

Gate that prepares the Hartree-Fock state (under JWT) from the all zeros state.

This gate assumes the Jordan-Wigner transformation (JWT).

This gate is meant to be applied to the all zeros state. It decomposes simply as a sequence of X gates that prepares the Hartree-Fock electronic configuration.

This gate assumes that qubits are ordered such that the first norb qubits correspond to the alpha orbitals and the last norb qubits correspond to the beta orbitals.

Methods

Attributes