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Communications in Theoretical Physics

Four-Particle Entangled State Representation and Its Squeezing Transformation

Song Tong-Qiang

Published Jun 1, 2005• 0 citations
Publisher

Abstract

The four-particle EPR entangled state | p ,χ 2 ,χ 3 ,χ 4 ⟩ is constructed. The corresponding quantum mechanical operator with respect to the classical transformation p → e λ 1 p , χ 2 → e λ 2 χ 2 , χ 3 → e λ 3 χ 3 , and χ 4 → e λ 4 χ 4 in the state | { p ,χ 2 ,χ 3 ,χ 4 }⟩ is investigated, and the four-mode realization of the SU(1,1) Lie algebra as well as the corresponding squeezing operators are presented.

DOI
10.1088/0253-6102/43/6/029

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