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Open Quantum Systems Decoherence

Nonclassicality of quantum states: a hierarchy of observable conditions.

PubMed

Authors: Richter T, Vogel W

Year

2002

Paper ID

13049

Status

Peer-reviewed

Abstract Read

~2 min

Abstract Words

Citations

192

Abstract

A necessary and sufficient hierarchy of conditions is derived that is completely equivalent to the failure of the Glauber-Sudarshan P function to be a probability density. The conditions are formulated in terms of experimentally accessible characteristic functions of quadratures.

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This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
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A necessary and sufficient hierarchy of conditions is derived that is completely equivalent to the failure of the Glauber-Sudarshan P function to be a probability density.

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References & Citation Signals

[1] DOI https://doi.org/10.1103/PhysRevLett.89.283601 [2] Publisher https://pubmed.ncbi.nlm.nih.gov/12513145/

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External citation index: OpenAlex citation signal • updated 2026-06-13 03:44:58

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