Dresden 2011 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 48: Quantum Gases: Effects of Interactions

Q 48.3: Talk

Thursday, March 17, 2011, 11:00–11:15, SCH 251

Nonlocal quantum superposition states via scattering of a bright quantum matter wave soliton — •Bettina Gertjerenken and Christoph Weiss — Institute of Physics, Carl von Ossietzky University, 26111 Oldenburg, Germany

Scattering of a quantum matter wave soliton on a barrier in a one-dimensional geometry can lead to mesoscopic quantum superposition states [1]. On the two-particle level the mathematically justified effective potential approach [1] can be numerically compared with the exact quantum dynamics and an excellent agreement for an experimentally realistic approximately Gaussian potential has already been shown [2]. Further investigations of the effective potential approach will be presented.

[1] C. Weiss and Y. Castin, Phys. Rev. Lett. 102, 010403 (2009).

[2] C. Weiss, Laser Phys. 20, 665 (2010).