Non-Markovian disentanglement dynamics of two-qubit system

Details Non-Markovian disentanglement dynamics of two-qubit system Non-Markovian disentanglement dynamics of two-qubit system

2007-09-20

arxiv.org/abs/0709.3229v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

17 pages, 3 figures

Scientific paper

10.1103/PhysRevA.77.022320

We investigated the disentanglement dynamics of two-qubit system in Non-Markovian approach. We showed that only the couple strength with the environment near to or less than fine-structure constant 1/137, entanglement appear exponential decay for a certain class of two-qubit entangled state. While the coupling between qubit and the environment is much larger, system always appears the sudden-death of entanglement even in the vacuum environment.

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