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Q: Fachverband Quantenoptik und Photonik
Q 10: Ultra-cold atoms, ions, and BEC II (joint session A/Q)
Q 10.3: Vortrag
Montag, 9. März 2020, 14:45–15:00, f303
Rogue waves in a selfgravitating BEC — •Sandro Gödtel1, Claus Lämmerzahl1, and Domenico Giulini1,2 — 1ZARM, University of Bremen, Germany — 2ITP, Leibniz University Hannover, Germany
The coupling between gravity and quantum mechanics is still an open question in physics. For this, we investigate an approach to increase possible gravitational effects within a quantum system such as a Bose-Einstein condensate. We show that the theoretical description by the well-known Gross-Pitaevskii equation leads to an interesting nonlinear phenomenon, namely rogue waves. Originally observed in ocean waves these waves locally increase the density and are often modeled by the Peregrine soliton or the so called multi-rogue wave solutions. By including a gravitational self-interaction we estimate the impact on the condensate with typical experimental values and specify the regime where it may become significant and observable.