Wydarzenia

Dnia 2026-10-27 o godzinie 13:15 w sali 2011 Wydziału Fizyki UwB, odbędzie się seminarium na którym mgr Michał Suchorowski, z Wydziału Fizyki Uniwersytetu Warszawskiego wygłosi wykład pt

From Scale Invariance to Universal Droplets: Generalised GPE for Attractive 2D Bose Gases.

Serdecznie zapraszamy

Tomasz Karpiuk

Andrzej Maziewski

From Scale Invariance to Universal Droplets: Generalised GPE for Attractive 2D Bose Gases.

mgr Michał Suchorowski

Wydziału Fizyki Uniwersytetu Warszawskiego

Dilute ultracold two-dimensional (2D) Bose gases exhibit scale-invariant behaviour that is absent in their three-dimensional counterparts. In attractive systems, this symmetry can be broken — a phenomenon known as the quantum anomaly — by the presence of universal many-body bound states (droplets). To explore this anomaly, especially the corresponding time dynamics, a simple yet powerful theoretical tool is required. In this work [1], we introduce a density-dependent coupling into the Gross-Pitaevskii equation (GPE), which not only captures the quantum anomaly but also retains a structure suitable for both intuitive analytical and numerical analysis. In my talk, I will demonstrate how this approach naturally bridges the physics of trapped systems and self-bound droplets, and how it enables the investigation of excited vortex states and complex collective dynamics.

References
[1] Suchorowski M.; Brauneis F.; Hammer H-W.; Tomza M.; Volosniev A. G.; Phys. Rev. Lett. 136, 243402 (2026)