STATISTICAL PROPERTIES OF SINGLE-MODE DISPLACED SQUEEZED VACUUM STATE

https://doi.org/10.31149/ijot.v2i12.1089
Quantum nature displaced state squeezed vacuum state

Authors

  • Alemayehu Getahun
    alex.ph400@gmail.com
    Department of physics, Mekdela Amba University, P.O.Box 32, Tullu Awulia, Ethiopia
  • Ruth Birhanu Department of physics, Mekdela Amba University, P.O.Box 32, Tullu Awulia, Ethiopia
  • Misrak Getahun Department of Physics, Hawassa University, P. O. Box 05, Awassa, Ethiopia
Vol. 2 No. 12 (2020): December
Articles
January 2, 2021

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In this paper the displaced squeezed vacuum state is produced by application of displaced operator on squeezed vacuum state. With help of density operator we find Q function, with the Q function mean, variance and quadrature variance would be calculated. From this we can determine the system has superpoissonian statics, the squeezed parameter is direct proportion with both mean and variance of photon number, but inversely proportion with quadrature variance. The squeezing occurs in plus quadrature with the maximum squeezing of 99.7% for r=3.