International Journal of Theoretical Physics

, Volume 49, Issue 5, pp 1106–1117 | Cite as

Excited Two-Mode Generalized Squeezed Vacuum State as a Squeezed Two-Variable Hermite Polynomial Excitation State

Article

Abstract

A new class of excited two-mode generalized squeezed vacuum states denoted by |r,s,m,n〉 are presented, which are obtained by repeatedly applying creation operators a and b on the two-mode generalized squeezed vacuum state. We find that it is just regarded as a generalized squeezed two-variable Hermite polynomial excitation on the vacuum state and its normalization constant is just a Jacobi polynomial. Their statistical properties are investigated such as squeezing properties, photon number distribution and the violations of Cauchy-Schwartz inequality. Especially, the Wigner function for |r,s,m,n〉 depending on the excitation photon numbers is discussed graphically.

Keywords

Two-mode generalized squeezed vacuum state Two-variable Hermite polynomial Violations of Cauchy-Schwartz inequality Wigner function 

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.Department of Modern PhysicsUniversity of Science and Technology of ChinaHefeiChina
  2. 2.Department of PhysicsShanghai Jiao Tong UniversityShanghaiChina

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