Nonclassical effects in phase space
- 1 April 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 51 (4) , 3340-3342
- https://doi.org/10.1103/physreva.51.3340
Abstract
We introduce a quantitative measure of nonclassical behavior based on negative regions of quasiprobability distributions. Zeros of the antinormal ordered phase-space representation characterize a state to be maximally nonclassical with respect to this measure. All pure states of a particle or of a single field mode, except those with Gaussian quasiprobability distributions, have one or more zeros in this representation.Keywords
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