Entanglement evolution of a two-qubit system with decay beyond rotating-wave approximation

Details Entanglement evolution of a two-qubit system with decay beyond rotating-wave approximation Entanglement evolution of a two-qubit system with decay beyond rotating-wave approximation

2008-12-11

arxiv.org/abs/0812.2177v1

Physics

Quantum Physics

4 pages, 6 figures

Scientific paper

10.1088/0256-307X/26/4/040302

Two noninteracting atoms, initially entangled in Bell states, are coupled to a one-mode cavity. Based on the reduced non-perturbative quantum master equation, the entanglement evolution of the two atoms with decay is investigated beyond rotating-wave approximation. It is shown that the counter-rotating wave terms have great influence on the disentanglement behavior. The phenomenon of entanglement sudden death and entanglement sudden birth will occur.

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