Irreversible decay of nonlocal entanglement via a reservoir of a single degree of freedom

Details Irreversible decay of nonlocal entanglement via a reservoir of a single degree of freedom Irreversible decay of nonlocal entanglement via a reservoir of a single degree of freedom

2007-03-26

arxiv.org/abs/quant-ph/0703241v2

Physics

Quantum Physics

6 pages, 4 figures, improved presentation, v2: title changed, references added, accepted for publication in Phys. Rev. A (Fund

Scientific paper

10.1103/PhysRevA.75.062120

Recently, it has been realized that nonlocal disentanglement may take a finite time as opposite to the asymptotic decay of local coherences. We find in this paper that a sudden irreversible death of entanglement takes place in a two atom optical Stern-Gerlach model. In particular, the one degree non dissipative environment here considered suddenly destroys the initial entanglement of any Bell's states $\ket{\phi^{\pm}}$ superposition.

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