sf.utils.squeezed_cov

squeezed_cov(r, phi, hbar=2)

Returns the squeezed covariance matrix of a squeezed state

Parameters

• r (complex) – the squeezing magnitude

• p (float) – the squeezing phase \(\phi\)

• hbar (float) – (default 2) the value of \(\hbar\) in the commutation relation \([\x,\p]=i\hbar\)

Returns

the squeezed state

Return type

array

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