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Cited by 710

The DOI matches its Crossref record; 15 of the 15 references it cites were found in a registry or an index.

Generalised P-representations in quantum optics

Drummond, P D, Gardiner, C W·1980·Journal of Physics A: Mathematical and General

Abstract

A class of normal ordering representations of quantum operators is introduced, that generalises the Glauber-Sudarshan P-representation by using nondiagonal coherent state projection operators. These are shown to have practical application to the solution of quantum mechanical master equations. Different representations have different domains of integration, on a complex extension of the usual canonical phase-space. The 'complex P-representation' is the case in which analytic P-functions are defined and normalised on contours in the complex plane. In this case, exact steady-state solutions can often be obtained, even when this is not possible using the Glauber-Sudarshan P-representation. The 'positive P-representation' is the case in which the domain is the whole complex phase-space. In this case the P-function may always be chosen positive, and any Fokker-Planck equation arising can be chosen to have a positive-semidefinite diffusion array. Thus the 'positive P-representation' is a genuine probability distribution. The new representations are especially useful in cases of nonclassical statistics.

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Metadata

Authors
Drummond, P. D., & Gardiner, C. W.
Venue
Journal of Physics A: Mathematical and General
Published
1980-07-01
Volume
13
Issue
7
Pages
2353-2368
ISSN
  • 0305-4470 (ISSN-L)
  • 1361-6447
OpenAlex
W2038366371
Cited by
710
References
15
FWCI
3.98
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Generalised P-representations in quantum optics. https://app.cochat.ai/papers/10.1088/0305-4470/13/7/018
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Drummond, P. D., & Gardiner, C. W. (1980). Generalised P-representations in quantum optics. Journal of Physics A: Mathematical and General. https://doi.org/10.1088/0305-4470/13/7/018

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