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The Wigner distribution function for squeezed vacuum superposed state
Faculty
Science
Year:
2005
Type of Publication:
Article
Pages:
967-975
Authors:
ZAYED, EME, Daoud, AS, AL-Laithy, MA, Naseem, EN
DOI:
10.1016/j.chaos.2004.09.048
Journal:
CHAOS SOLITONS \& FRACTALS PERGAMON-ELSEVIER SCIENCE LTD
Volume:
24
Research Area:
Mathematics; Physics
ISSN
ISI:000227122700006
Keywords :
, Wigner distribution function , squeezed vacuum superposed
Abstract:
In this paper, we construct the Wigner distribution function for a single-mode squeezed vacuum mixed-state which is a superposition of the squeezed vacuum state. This state is defined as a P-representation for the density operator. The obtained Wigner function depends, beside the phase-space variables, on the mean number of photons occupied by the coherent state of the mode. This mean number relates to the mean free path through a given relation, which enables us to measure this number experimentally by measuring the mean free path. (C) 2004 Elsevier Ltd. All rights reserved.
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