Gaussian state from covariance matrix

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Pradip Laha

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Dec 5, 2023, 7:01:18 AM12/5/23
to QuTiP: Quantum Toolbox in Python
Hi all, 

Given that we know the mean vector and the covariance matrix (single or two modes), what would be the best way to obtain the corresponding Gaussian state in QuTip?

To be precise, I want the density matrix of the Gaussian state in number basis.

Thanks in advance!
PL

RAHUL SHASTRI

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Jul 11, 2025, 7:32:11 AMJul 11
to QuTiP: Quantum Toolbox in Python
Hi all,

Is there a simpler way to calculate gaussian state density matrix given the first and second moments? 

Thanks

RAHUL SHASTRI

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Jul 11, 2025, 7:33:52 AMJul 11
to QuTiP: Quantum Toolbox in Python
@Pradip

Did you end up finding the solution for the question? I need something similar. Thanks!

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