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sf.physics.fock.autocutoffs

mrmustard.physics.fock.autocutoffs(cov, means, probability)[source]

Returns the cutoffs of a Gaussian state by computing the 1-mode marginals until the probability of the marginal is less than probability.

Parameters:

  • cov (ndarray[Tuple[int, int], Union[TypeVar(R, float16, float32, float64), TypeVar(C, complex64, complex128), TypeVar(Z, int16, int32, int64), TypeVar(N, uint16, uint32, uint64)]]) – the covariance matrix

  • means (ndarray[Tuple[int], Union[TypeVar(R, float16, float32, float64), TypeVar(C, complex64, complex128), TypeVar(Z, int16, int32, int64), TypeVar(N, uint16, uint32, uint64)]]) – the means vector

  • probability (float) – the cutoff probability

Returns:

the suggested cutoffs

Return type:

Tuple[int, …]

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