Randomized homodyne and heterodyne measurements are processed into shadow estimators of continuous-variable state moments, enabling entanglement and loss detection with a few thousand samples.
The Glauber-Sudarshan rep- resentation is however necessary to find the final form of the normally-ordered moment estimators of our state
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Continuous-variable state moments from randomized homodyne and heterodyne measurements
Randomized homodyne and heterodyne measurements are processed into shadow estimators of continuous-variable state moments, enabling entanglement and loss detection with a few thousand samples.