Freiburg 2024 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 24: Poster II

Q 24.21: Poster

Dienstag, 12. März 2024, 17:00–19:00, KG I Foyer

Spinor Bose-Einstein condensate as Platform for Studying Extreme Wave Events — Yannick Deller, Ido Siovitz, •Alexander Schmutz, Felix Klein, Helmut Strobel, Thomas Gasenzer, and Markus K. Oberthaler — Kirchhoff Institut for Physics, Ruprecht-Karls-University Heidelberg

Many-body systems far from equilibrium can exhibit self-similar dynamics characterized by universal exponents. Studies of the 1D spinor Bose gas have shown [1], that the value of these exponents is connected with the occurrence of extreme wave excitations in the mutually coupled magnetic components. Numerical simulations showed that real-time instanton defects appear as a result of the caustics, manifesting as spin-1 vortices in space-time. To characterize these experimentally, we employ local spin-dependent phase imprints. We investigate the resulting deterministic excitations and their connections to real-time instantons.

[1] Siovitz at. al., PRL 131, 183402 (2023)

Keywords: Spinor Bose-Einstein Condensates; Non-Equilibrium Dynamics