Group Seminar at LMU: Collisionally inhomogeneous matter waves

February 18, 2020

Elmar Haller, University of Strathclyde
LMU München
Schellingstr. 4, Seminar room H 107
80799 München
Tuesday, February 18, at 9.15 a.m.

Fluids with a position-dependent interaction strength do frequently occur at boundaries between phases of matter, e.g. between a liquid and a gas phase, or at junctions in condensed matter physics. In the talk, I will discuss those collisionally inhomogeneous fluids for the case of Bose-Einstein condensates (BECs). In particular, we studied the evolution of a BEC that simultaneously spread into regions with attractive and repulsive interactions for a linear interaction gradient [1]. In addition, I will discuss recent measurements of the fundamental excitation mode, and of higher-order breathing modes of bright matter-wave solitons [2].

[1] A. Di Carli, et al., arXiv:1908.10021.
[2] A. Di Carli, et al., Phys. Rev. Lett. 123, 123602 (2019)

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