Entanglement and non-classical properties of nonlinear supercoherent states

Amin Motamedinasab, Davood Afshar, Mojtaba Jafarpour

Amin Motamedinasab, Somayeh Mehrabankar

方旭 Fang Xu, 王中结 Wang Zhongjie

Erik Díaz-Bautista, David J. Fernández C.

We find and analyze the (nonlinear) supercoherent states associated with the generalized nonlinear supersymmetric annihilation operator (SAO) of the supersymmetric harmonic oscillator. We discuss as well the uncertainty relation for a special case in order to compare our results with those obtained for the linear supercoherent states.

Davood Afshar, Amin Motamedinasab, Azam Anbaraki +1 more

In this paper, we have constructed even and odd superpositions of supercoherent states, similar to the standard even and odd coherent states of the harmonic oscillator. Then, their nonclassical properties, that is, squeezing and entanglement have been studied. We have observed that even supercoherent states show squeezing behavior for some values of parameters involved, while odd supercoherent states do not show squeezing at all. Also sub-Poissonian statistics have been observed for some ranges of the parameters in both states. We have also shown that these states may be considered as logical qubits which reduce to the Bell states at a limit, with concurrence equal to 1.

孙慧颖, 黄晓理, 衣学喜