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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Vol. 15, Iss. 3 — Mar. 1, 1998
  • pp: 1187–1191

Simple criterion for nonclassical two-mode states

Ching Tsung Lee  »View Author Affiliations

JOSA B, Vol. 15, Issue 3, pp. 1187-1191 (1998)

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A sufficient condition for nonclassical two-mode states in terms of three probabilities, (n2+1)p(n1-1, n2+1)2n1p(n1, n2)+(n1+1)p(n1+1, n2-1)2n2p(n1, n2)<1, is established as a new type II criterion. This criterion is applied to the two-mode coherent state, the two-mode squeezed vacuum state, and the pair coherent state to show how easily it can be used. It is also applied to the photon-added two-mode thermal state and the mixing of two two-photon states by a symmetric beam splitter to show that the type II criterion is superior to its type I counterpart in at least these two examples.

© 1998 Optical Society of America

OCIS Codes
(030.5260) Coherence and statistical optics : Photon counting
(270.0270) Quantum optics : Quantum optics
(270.5290) Quantum optics : Photon statistics

Ching Tsung Lee, "Simple criterion for nonclassical two-mode states," J. Opt. Soc. Am. B 15, 1187-1191 (1998)

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