The Wigner distribution function for squeezed vacuum superposed state

E.M.E. Zayed, A.S. Daoud, M.A. AL-Laithy and E.N. Naseem

Chaos, Solitons & Fractals, 2005, vol. 24, issue 4, 967-975

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.

Date: 2005
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:24:y:2005:i:4:p:967-975

DOI: 10.1016/j.chaos.2004.09.048

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