GENERAL

Quantum Communication in Spin Chain with Multiple Spin Exchange Interaction

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2010 Chinese Physical Society and IOP Publishing Ltd
, , Citation Hao Xiang and Zhu Shi-Qun 2010 Commun. Theor. Phys. 53 1083 DOI 10.1088/0253-6102/53/6/18

0253-6102/53/6/1083

Abstract

The transmission of quantum states in the anisotropic Heisenberg XXZ chain model with three-spin exchange interaction is studied. The average fidelity is used to evaluate the state transfer. It is found that quantum communication can be enhanced by the anisotropic coupling and multiple spin interaction. Such spin model can reduce the time required for the perfect state transmission where the fidelity is unity. The maximally entangled Bell states can be generated and separated from the whole quantum systems.

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10.1088/0253-6102/53/6/18