Comment on ‘‘Langevin equation for the squeezing of light by means of a parametric oscillator’’
- 1 December 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 44 (11) , 7848-7850
- https://doi.org/10.1103/physreva.44.7848
Abstract
We comment on statements made about quantum representation theory in the paper by T. W. Marshall and E. Santos [Phys. Rev. A 41, 1582 (1990)]. Results are presented which show that correct results can be obtained from Langevin equations derived from the positive-P representation, even when those obtained by truncation of the Wigner time-evolution equation give incorrect results.Keywords
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