Preservation of entanglement in a two-qubit-spin coupled system

Details Preservation of entanglement in a two-qubit-spin coupled system Preservation of entanglement in a two-qubit-spin coupled system

2011-08-25

arxiv.org/abs/1108.4981v1

Annals of Physics 327 (2012) 292-296

Physics

Quantum Physics

Accepted by Annals of Physics

Scientific paper

A theoretical scheme to preserve the entanglement in a two-qubit-spin coupled system in the presence of Dzyaloshinskii-Moriya (DM) anisotropic antisymmetric interaction is proposed. Based on a sequence of operations performed periodically on the system, the scheme can preserve the entanglement of the system starting from any initial state with any high precision for any long duration.

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