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The Wigner distribution function for squeezed vacuum superposed state

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

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.

Suggested Citation

  • Zayed, E.M.E. & Daoud, A.S. & AL-Laithy, M.A. & Naseem, E.N., 2005. "The Wigner distribution function for squeezed vacuum superposed state," Chaos, Solitons & Fractals, Elsevier, vol. 24(4), pages 967-975.
    • Handle: RePEc:eee:chsofr:v:24:y:2005:i:4:p:967-975
    DOI: 10.1016/j.chaos.2004.09.048
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