The reservoir can be modelled by an infinite array of beam splitters and the superposition of input fields in a lossless beam splitter can be described by the convolution of quasiprobability functions. We use the convolution relation and the beam splitter model to derive the Fokker-Planck equation for a system coupled with a phase-sensitive reservoir. Solving the Fokker-Planck equation, we test the coincidence of the loss of well-known nonclassical properties with the appearance of the positive well-defined Glauber-Sudarshan P function.
|Number of pages||11|
|Journal||Acta Physica Slovaca|
|Publication status||Published - Jun 1 1996|
ASJC Scopus subject areas
- Physics and Astronomy(all)