On the dynamics of maximum extractable entanglement for open systems

Details On the dynamics of maximum extractable entanglement for open systems On the dynamics of maximum extractable entanglement for open systems

2008-09-11

arxiv.org/abs/0809.1912v1

Physics

Quantum Physics

16 pages, 7 figures

Scientific paper

10.1088/0953-4075/41/23/235504

In this work we study the dynamics of the maximum extractable entanglement for a system composed of two qubits interacting either with two independent thermal baths, a common thermal bath or a common squeezed bath. The states with maximum entanglement are found applying filtering operations which transform each state to a state in Bell diagonal form. We observe a revival of the maximum extractable entanglement for common baths. It is also shown that for some particular states in two independent baths at zero temperature, one can partially recover the initial entanglement at any time.

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