Entanglement sudden death of decohered hybrid entangled system

Abstract

Abstract: The entanglement dynamics behavior of a class of hybrid entangled state in two different quantum channels and entanglement sudden death phenomenon in the process of decoherence are investigated. The entanglement of phase damping channel and depolarization channel is calculated, and the entanglement change with time is analyzed. Results show that the entanglement sudden death phenomenon will not appear in the phase damping channel. The hybrid entangled state will undergo entanglement sudden death in the depolarization channel, and the entanglementwill decay to zero within a certain time.

Key words: quantum optics, hybrid entanglement, entanglement sudden death, concurrence, decoherence

SONG Lingling，LI Yan*. Entanglement sudden death of decohered hybrid entangled system[J]. Chinese Journal of Quantum Electronics.

References

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