Sudden death and sudden birth of entanglement in common structured reservoirs

Details Sudden death and sudden birth of entanglement in common structured reservoirs Sudden death and sudden birth of entanglement in common structured reservoirs

2008-12-18

arxiv.org/abs/0812.3546v1

Physics

Quantum Physics

4 pages, 2 figures

Scientific paper

10.1103/PhysRevA.79.042302

We study the exact entanglement dynamics of two qubits in a common structured reservoir. We demonstrate that, for certain classes of entangled states, entanglement sudden death occurs, while for certain initially factorized states, entanglement sudden birth takes place. The backaction of the non-Markovian reservoir is responsible for revivals of entanglement after sudden death has occurred, and also for periods of disentanglement following entanglement sudden birth.

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