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Q: Fachverband Quantenoptik und Photonik

Q 8: Quantum Effects: Interference and Correlations II / Entanglement and Decoherence I

Q 8.9: Vortrag

Montag, 8. März 2010, 18:45–19:00, A 310

Two interacting atoms in a cavity: Entanglement vs decoherence — •Emerson Sadurní^{1, 2}, Thomas Seligman^{2, 3}, and Mauricio Torres² — ¹Institut fuer Quantenphysik, Ulm Universitaet — ²Instituto de Ciencias Físicas, UNAM. México — ³Centro Internacional de Ciencias, UNAM, México

We address the problem of two interacting atoms of different species inside a cavity and find the explicit solutions of the corresponding eigenvalue problem. Closed expressions for concurrence and purity as a function of time when the cavity is prepared in a number state are found. The behavior in the concurrence-purity plane is discussed.