sf.decompositions.hamil_to_covmat

hamil_to_covmat(H, tol=1e-10)

Converts a Hamiltonian matrix to a covariance matrix.

Given a Hamiltonian matrix of a Gaussian state H, finds the equivalent covariance matrix V in the xp ordering.

For more details, see https://arxiv.org/abs/1507.01941

Parameters

• H (array) – positive definite Hamiltonian matrix

• tol (int) – the number of decimal places to use when determining if the Hamiltonian is symmetric

Returns

Gaussian covariance matrix

Return type

array

code/api/strawberryfields.decompositions.hamil_to_covmat

 

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