Journal of Nanchang University
THE NONLOCALITY OF AN ENTANGLED COHERENT STATE AND ITS EVOLUTION BY USING PSEUDOSPIN OPERATORS
Gong Ren-shan
Abstract
By using Bell CHSH inequality,nonlocality of a kind of entangled coherent state and its evolution in a vacuum thermal reservoir are studied.It is shown that nonlocality of the state are related with the phases.In this paper we just give the results when φ-2=0 is satisfied,on the other hand nonlocality of the state decreases gradually and disappears finally under the time evolution in a vacuum thermal reservoir.