Give terms from the Fermi-Hubbard Hamiltonian in simulated order.
openfermion.circuits.simulation_ordered_grouped_hubbard_terms_with_info(
hubbard_hamiltonian
)
Uses the simulation ordering, grouping terms into hopping
(i^ j + j^ i) and on-site potential (i^j^ i j) operators.
Pre-computes term information (indices each operator acts on, as
well as whether each operator is a hopping operator).
Args |
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hubbard_hamiltonian (FermionOperator): The Hamiltonian.
original_ordering (list): The initial Jordan-Wigner canonical order.
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Returns |
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A 3-tuple of terms from the Hubbard Hamiltonian in order of
simulation, the indices they act on, and whether they are hopping
operators (both also in the same order).
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Notes |
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Assumes that the Hubbard model has spin and is on a 2D square
aperiodic lattice. Uses the "stagger"-based Trotter step for the
Hubbard model detailed in Kivlichan et al., "Quantum Simulation
of Electronic Structure with Linear Depth and Connectivity",
arxiv:1711.04789.
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View source on GitHub