fqe.util.zero_transform

Given a bitstring, determine if it satisfies the occupation and

fqe.util.zero_transform(
    string0: int,
    unocc: int,
    occ: int,
    norb: int
) -> bool

nonoccupation conditions necessary to be non zero when a product of creation and annihilation operators are applied.

Args
string0 (bitstring) - the occupation representation being acted upon unocc (bitstring) - orbitals which should be unoccupied in string0 occ (bitstring) - orbitals which should be occupied in string0 norb (int) - the number of spatial orbitals for masking the bitstrings

Returns
(bool) - true if the transformation is non zero, false if the transformation is zero

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 2021-10-18 UTC.

Args