mm.physics.fock.wigner_to_fock_Choi

mrmustard.physics.fock.wigner_to_fock_Choi(X, Y, d, shape)

Returns the Fock representation of a Gaussian Choi matrix. The order of choi indices is \([\mathrm{out}_l, \mathrm{in}_l, \mathrm{out}_r, \mathrm{in}_r]\) where \(\mathrm{in}_l\) and \(\mathrm{in}_r\) are to be contracted with the left and right indices of a density matrix.

Parameters:

• X – the X matrix

• Y – the Y matrix

• d – the d vector

• shape – the shape of the tensor

Returns:

the fock representation of the Choi matrix

Return type:

Tensor

code/api/mrmustard.physics.fock.wigner_to_fock_Choi

 

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