2006•Journal of Guangxi UniversityRequires access

Squeezing effects of the photon-added squeezed vacuum states

Qingyi Yang

Abstract

Photon-added squeezed vacuum states were fabricated by act inverse operator of Boson annihilation operator ~(-1) and Boson creation operator ~+ on the squeezed vacuum states first.Then the squeezing properties of the photon-added squeezed vacuum states are discussed.The results show that only the photon-added squeezed state which was acted on ~+ can appear squeezing effects,but was acted on ~(-1) did not.The squeezing range have relation with the squeezing parameter η.So the squeezing properties of the photon-added squeezed vacuum states have closed relation with ~(-1) and ~+.

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Key concepts: Squeezed coherent state, Vacuum state, Photon, Physics, Annihilation, Operator (biology), Creation and annihilation operators, Boson