Mainz 2026 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 42: Poster – Ultracold Matter (joint session Q/A)

Q 42.2: Poster

Mittwoch, 4. März 2026, 17:00–19:00, Philo 2. OG

Stability analysis of a holographic superfluid — •Martin Zboron¹, Gregor Bals^{2, 3}, Carlo Ewerz^{2, 3}, and Thomas Gasenzer^{1, 2, 3} — ¹Kirchhoff-Institut für Physik, Univ. Heidelberg, Im Neuenheimer Feld 227, 69120 Heidelberg — ²Institut für Theoretische Physik, Univ. 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. Due to Bekenstein-Hawking entropy, a black brane provides a finite temperature to this system. Allowing particles and energy to fall behind the horizon relates to a strong dissipation in the superfluid. A Bogoliubov-type analysis of small excitations in the bulk reveals their dispersion relation as well as their damping rates, granting insights into the relevant dissipation mechanisms. Numerical results of this analysis enable comparisons of the holographic superfluid to phenomenological models of finite-temperature superfluids, such as the dissipative Gross-Pitaevskii equation, as well as experimentally realised superfluids.

Keywords: Holographic Superfluids; Dissipative Superfluids; Linear Stability