In celebration of World Quantum Day, join us in exploring the future of quantum computing.

openfermion.utils.map_particle_hole_dm_to_one_pdm

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

View aliases

Main aliases

openfermion.map_particle_hole_dm_to_one_pdm, openfermion.utils.rdm_mapping_functions.map_particle_hole_dm_to_one_pdm

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] == \(a_{p}^{\dagger}a_{q}a_{r}^{\dagger}a_{s}\).
`num_particles`	number of particles in the system.
`num_basis_functions`	number of spin-orbitals (usually the number of qubits)

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] == \(a_{p}^{\dagger}a_{q}a_{r}^{\dagger}a_{s}\).

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.

Returns

opdm

numpy.ndarray

the 1-RDM transformed from a 1-RDM.

Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.

Last updated 2025-02-12 UTC.