openfermion.utils.map_particle_hole_dm_to_one_pdm

Map the particle-hole-RDM to the 1-RDM

Main aliases

openfermion.utils.map_particle_hole_dm_to_one_pdm(
    phdm, num_particles, num_basis_functions
)

Args
phdm (numpy.ndarray): The 2-particle-hole-RDM as a 4-index tensor. Indices follow the internal convention of phdm[p, q, r, s] == :math:`a_{p}^{\dagger}a_{q}a_{r}^{\dagger}a_{s}`.
`num_particles`	number of particles in the system.
`num_basis_functions`	number of spin-orbitals (usually the number of qubits)

Returns
opdm (numpy.ndarray): the 1-RDM transformed from a 1-RDM.

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Last updated 2021-03-10 UTC.

Args