Bonn 2025 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 25: Poster – Cold Atoms and Molecules, Matter Waves (joint session Q/A/MO)
Q 25.22: Poster
Dienstag, 11. März 2025, 14:00–16:00, Tent
Extending the holographic superfluid model — •Martin Zboron1, Gregor Bals2,3, Thomas Gasenzer1,2,3, and Carlo Ewerz2,3 — 1Kirchhoff-Institut für Physik, Uni Heidelberg, Im Neuenheimer Feld 227, 69120 Heidelberg — 2Institut für Theoretische Physik, Uni Heidelberg, Philosophenweg 16, 69120 Heidelberg — 3ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung, Planckstraße 1, 64291 Darmstadt, Germany
Gauge-gravity duality establishes a connection between strongly correlated quantum systems and higher-dimensional gravitational theories at weak coupling. Utilising an Abelian Higgs model in an asymptotically anti-de Sitter spacetime, one obtains the so-called holographic s-wave superfluid. A rich phenomenology is embodied in this model making dynamics of defects, such as quantised vortices, amenable to precise quantitative analysis. Aside from vortex dynamics in the dissipative superfluid, excitations like Kelvin waves on top of vortex lines can be studied as well as the instability of vortices with high winding numbers. Recent proposals presented possible extensions of the model in order to capture the transition to a holographic model of supersolidity, allowing access to dynamics of vortices as well as their pinning and unpinning within the supersolid state. This also opens a path to understanding the spin-down of pulsars in a supersolid framework.
Keywords: Holographic Superfluids; Holographic Supersolids; Kelvin Waves