Mr Mustard Documentation¶
Mr Mustard is a differentiable bridge between phase space and Fock space with rich functionality in both representations.
Mr Mustard supports the following in a fully differentiable way:
Phase space representation of Gaussian states and Gaussian channels on an arbitrary number of modes
Exact Fock representation of any Gaussian circuit and any Gaussian state up to an arbitrary cutoff
Beam splitter, MZ interferometer, squeezer, displacement, phase rotation, bosonic lossy channel, thermal channel, more to come..
General Gaussian N-mode gate and general N-mode Interferometer with dedicated symplectic and orthogonal optimization routines
Photon number moments
PNR detectors, Threshold detectors with trainable quantum efficiency and dark counts
Homodyne, Heterodyne and Generaldyne Gaussian measurements
An optimizer with a spiffy progress bar
A composable Circuit object
Plug-and-play backends (TensorFlow and PyTorch)
An abstraction layer
XPTensorfor seamless symplectic algebra