Darmstadt 2008 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 41: Quanteninformation (Konzepte und Methoden III)

Q 41.5: Talk

Thursday, March 13, 2008, 15:00–15:15, 1B

Phase-space Characterization of Multipartite Entanglement — •Agung Budiyono¹, Alejo Salles^1,2, Fernando de Melo¹, Thomas Wellens¹, and Andreas Buchleitner¹ — ¹Physikalisches Institut Albert-Ludwigs-Universität Freiburg, Hermann-Herder-Str. 3, D-79104, Freiburg, Germany — ²Instituto de Física, Universidade Federal do Rio de Janeiro,

We consider a sequence of two levels atoms interacting one by one resonantly with a cavity sustaining a single mode, according to the Jaynes-Cummings model. We evaluate the amount of entanglement in the initial atomic state which is needed to prepare certain classes of target field state. Furthermore, we investigate how this entanglement should be shared by the different subsystems in order to optimize the target field state creation. In this way, we explore how the multipartite entanglement of the initial atoms is mapped onto the phase-space of the field in the cavity.