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Hannover 2020 – wissenschaftliches Programm

Die DPG-Frühjahrstagung in Hannover musste abgesagt werden! Lesen Sie mehr ...

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A: Fachverband Atomphysik

A 8: Ultra-cold atoms, ions, and BEC II (joint session A/Q)

A 8.3: Vortrag

Montag, 9. März 2020, 14:45–15:00, f303

Rogue waves in a selfgravitating BEC — •Sandro Gödtel1, Claus Lämmerzahl1, and Domenico Giulini1,21ZARM, 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.

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