The newn-mode coherent–entangled state and its application
Hongqi Li, Ting-Qi Ren, Yunhai Zhang, Xing-Lei Xu · Journal of Physics A Mathematical and Theoretical · 2012
A new kind of continuous variable n -mode coherent–entangled state (CV-NCES) | x 2 , x 3 , ⋅⋅⋅, x n , α〉 is proposed, which exhibits both the properties of a coherent state and an entangled state, and spans a complete and orthonormal representation. The conjugate state of CV-NCES is derived by the Fourier transformation. Moreover, a simple experimental protocol of generating a CV-NCES is proposed by using beam splitters. As applications of this CV-NCES in quantum optics, a new n -mode squeezing-Fresnel operator is constructed.