= Glauber–Sudarshan P representation
{wiki=Glauber–Sudarshan_P_representation}
The Glauber–Sudarshan P representation is an important tool in quantum optics and quantum mechanics for describing the statistical state of a quantum system, particularly in the context of light and bosonic fields. This representation provides a way to express the density operator (or state) of a quantum system as a distribution over the phase space of classical probabilities. \#\#\# Key Concepts 1.
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