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Applied Physics Letters

Stationary entanglement of atoms induced by classical field

Özgür Çakır, Alexander A. Klyachko, A.S. Shumovsky

Published Apr 21, 2005• 2 citations
Publisher

Abstract

We propose a scheme of stabilization of high-level entanglement through the use of classical driving field in atomic system with dipole-dipole interaction and losses caused by spontaneous radiation processes.
DOI
10.1063/1.1915524

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The dynamics of two two-level dipole-dipole interacting atoms coupled to a common electro-magnetic bath and closely located inside a lossy cavity, is reported. Initially injecting only one excitation in the two-atom cavity system, loss mechanisms asymptotically drive the matter sample toward a stationary maximally entangled state. The role played by the closeness of the two atoms, with respect to such a cooperative behavior, is carefully discussed. Stationary radiation trapping effects are found and transparently interpreted.
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The dynamics of two two-level dipole-dipole interacting atoms coupled to a common electromagnetic bath and closely located inside a lossy cavity, is reported. Initially injecting only one excitation in the two atoms-cavity system, loss mechanisms asymptotically drive the matter sample toward a stationary maximally entangled state. The role played by the closeness of the two atoms with respect to such a cooperative behaviour is carefully discussed. Stationary radiation trapping effects are found and transparently interpreted.