SAMOP 2023 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 20: Quantum Gases: Bosons II
Q 20.5: Vortrag
Dienstag, 7. März 2023, 12:00–12:15, F342
Stability of vortices in dipolar droplets — Milan Radonjić1,2, •Antun Balaž2, and Axel Pelster3 — 1I. Institute of Theoretical Physics, University of Hamburg, Germany — 2Center for the Study of Complex Systems, Institute of Physics Belgrade, University of Belgrade, Serbia — 3Physics Department and Research Center OPTIMAS, Rheinland-Pfälzische Technische Universität Kaiserslautern-Landau, Germany
Vortices in dipolar Bose-Einstein condensates have been studied theoretically and numerically for a long time, but have proved to be elusive and were experimentally observed only very recently [1]. Based on variational calculations, it was suggested [2] that vortices may also exist in dipolar droplets [3], exotic quantum states that emerge due to quantum fluctuations [4]. Here we investigate if self-bound dipolar droplets can support vortices using numerical approach based on the extended Gross-Pitaevskii equation, which includes quantum depletion and finite-size corrections. We also study dynamical stability of such vortex states for experimentally relevant values of system parameters.
[1] L. Klaus et al., In press, Nat. Phys. (2022).
[2] A. Cidrim et al., Phys. Rev. A 98, 023618 (2018).
[3] H. Kadau et al., Nature 530, 194 (2016).
[4] A. R. P. Lima and A. Pelster, Phys. Rev. A 84, 041604(R) (2011); [3] Phys. Rev. A 86, 063609 (2012).