openfermion.linalg.get_gap

Compute gap between lowest eigenvalue and first excited state.

Main aliases

openfermion.linalg.get_gap(
    sparse_operator, initial_guess=None
)

Args
`sparse_operator`	`LinearOperator` Operator to find the ground state of.
`initial_guess`	`ndarray` Initial guess for eigenspace. A good guess dramatically reduces the cost required to converge.

Args

sparse_operator

LinearOperator

Operator to find the ground state of.

initial_guess

ndarray

Initial guess for eigenspace. A good guess dramatically reduces the cost required to converge.

Returns: A real float giving eigenvalue gap.

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Last updated 2023-06-08 UTC.