sf.physics.gaussian.log_negativity¶
- mrmustard.physics.gaussian.log_negativity(cov)[source]¶
Returns the log_negativity of a Gaussian state.
Reference: https://arxiv.org/abs/quant-ph/0102117 , Equation 57, 61.
- Parameters:
cov (Matrix) – the covariance matrix
- Returns:
the log-negativity
- Return type:
float
code/api/mrmustard.physics.gaussian.log_negativity
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