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

A. Vaglica·G. Vetri
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Abstract

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 $\ket{ϕ^{\pm}}$ superposition.

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A. Vaglica, G. Vetri. 2007-06-06. Irreversible decay of nonlocal entanglement via a reservoir of a single degree of freedom. https://doi.org/10.1103/physreva.75.062120

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