Quantum phase distributions and quasidistributions
- 1 November 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 46 (9) , R5346-R5349
- https://doi.org/10.1103/physreva.46.r5346
Abstract
We analyze the relationship between the phase distribution for optical fields derived using phase-operator techniques with that derived from the Wigner phase-space quantum quasiprobability. We show that these two approaches agree for field states dominated by Fock states within a narrow distribution, but differ for cases involving widely separated photon-number contributions. Dominance by even Fock states can result in a negative Wigner phase distribution. An example of this is drawn from the Jaynes-Cummings model.Keywords
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