Series representation of quantum-field quasiprobabilities

Héctor Moya-Cessa and Peter L. Knight
Phys. Rev. A 48, 2479 – Published 1 September 1993
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Abstract

The Wigner and Glauber-Sudarshan P functions for quantum fields are usually defined in terms of integrals over the phase space of characteristic functions. We show that they and, in general, any s-parametrized quasiprobability distribution may be represented as a series in terms of displaced number states facilitating a straightforward evaluation.

  • Received 29 March 1993

DOI:https://doi.org/10.1103/PhysRevA.48.2479

©1993 American Physical Society

Authors & Affiliations

Héctor Moya-Cessa and Peter L. Knight

  • Optics Section, The Blackett Laboratory, Imperial College, London SW7 2BZ, England

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Issue

Vol. 48, Iss. 3 — September 1993

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