Entanglement preservation for multilevel systems under non-ideal pulse control

Details Entanglement preservation for multilevel systems under non-ideal pulse control Entanglement preservation for multilevel systems under non-ideal pulse control

2010-05-18

arxiv.org/abs/1005.3171v1

Physics

Quantum Physics

4 pages, 3 figures

Scientific paper

We investigate how to effectively preserve the entanglement between two noninteracting multilevel oscillators coupled to a common reservoir under non-ideal pulse control. A universal characterization using fidelity is developed for the behavior of the system based on Nakajima-Zwanzig projection operator technique. Our analysis includes the validity of the approximation method and the decoherence-suppression by the non-ideal pulse control. The power of our strategy for protecting entanglement is numerically tested, showing potential applications for quantum information processing.

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