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Q: Fachverband Quantenoptik und Photonik

Q 21: Poster I

Q 21.65: Poster

Tuesday, March 9, 2010, 16:00–19:00, Lichthof

Study of entanglement dynamics through a partial P-representation — •Ansgar Pernice and Walter T. Strunz — TU Dresden

We investigate entanglement dynamics of a qubit coupled to harmonic oscillators. Initially, we assume "system" and "environment" to be independent and represented by mixed states. We find it convenient to express the total state in terms of a partial P-representation, whose definiteness we relate to entanglement. Our results help to elucidate the role of entanglement in open system dynamics.