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Dresden 2011 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 10: Quantum Gases: Bosons 2

Q 10.2: Talk

Monday, March 14, 2011, 14:45–15:00, HÜL 386

Quantum superpositions of Bose-Einstein condensates and periodic shaking — •Christoph Weiss — Institut für Physik, Universität Oldenburg, 26111 Oldenburg

Quantum superpositions of ultra-cold atoms are investigated for periodically shaken systems [1-3]. The focus of the talk will lie on how to distinguish quantum superpositions from statistical mixtures. All proposals would start with Bose-Einstein condensates.

[1] C. Weiss and N. Teichmann. Differences between mean-field dynamics and N-particle quantum dynamics as a signature of entanglement. Phys. Rev. Lett., 100:140408, 2008.

[2] B. Gertjerenken, S. Arlinghaus, N. Teichmann, and C. Weiss. Reproducible mesoscopic superpositions of Bose-Einstein condensates and mean-field chaos. Phys. Rev. A, 82:023620, 2010.

[3] K. Stiebler, B. Gertjerenken, N. Teichmann, and C. Weiss. Spatial two-particle quantum superpositions in periodically driven three-well potentials. Submitted to J. Phys. B, 2010.

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