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Berlin 2014 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 14: Ultracold atoms, ions and BEC II (with A)

Q 14.1: Vortrag

Montag, 17. März 2014, 14:00–14:15, BEBEL E34

Bose-Einstein condensates in complex PT-symmetric potentials - a finite element approach — •Daniel Haag, Dennis Dast, Holger Cartarius, and Günter Wunner — 1. Institut für Theoretische Physik, Universität Stuttgart

PT-symmetric systems have been intensively studied in optical waveguides where the PT symmetry is achieved by pumping and absorption processes. In such systems the PT symmetry leads to a wide range of effects promising technical and scientific applications. By analogy, balanced gain and loss of particles in Bose-Einstein condensates can be described by introducing a PT-symmetric imaginary potential into the Gross-Pitaevskii equation. This equation is solved for various three-dimensional complex potentials using the finite element method.

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