KIP publications

year 2021
author(s) Paul Wittmer, Christian-Marcel Schmied, Thomas Gasenzer and Carlo Ewerz
title Vortex Motion Quantifies Strong Dissipation in a Holographic Superfluid
KIP-Nummer HD-KIP 21-63
KIP-Gruppe(n) F27
document type Paper
source Phys. Rev. Lett. 127 (2021) 101601
doi 10.1103/PhysRevLett.127.101601
Abstract (en)

Holographic duality provides a description of strongly coupled quantum systems in terms of weakly coupled gravitational theories in a higher-dimensional space. It is a challenge, however, to quantitatively determine the physical parameters of the quantum systems corresponding to generic holographic theories. Here, we address this problem for the two-dimensional holographic superfluid, known to exhibit strong dissipation. We numerically simulate the motion of a vortex dipole and perform a high-precision matching of the corresponding dynamics resulting from the dissipative Gross-Pitaevskii equation. Excellent agreement is found for the vortex core shape and the spatio-temporal trajectories. A further comparison to the Hall-Vinen-Iordanskii equations for point vortices interacting with the superfluid allows us to determine the friction parameters of the holographic superfluid. Our results suggest that holographic vortex dynamics can be applied to experimentally accessible superfluids like strongly coupled ultracold Bose gases or thin helium films with temperatures in the Kelvin range. This would make holographic far-from-equilibrium dynamics and turbulence amenable to experimental tests.

  author   = {Wittmer, Paul and Schmied, Christian-Marcel and Gasenzer, Thomas and Ewerz, Carlo},
  title    = {Vortex Motion Quantifies Strong Dissipation in a Holographic Superfluid},
  journal  = {Phys. Rev. Lett.},
  year     = {2021},
  volume   = {127},
  pages    = {101601},
  month    = {Aug},
  doi      = {10.1103/PhysRevLett.127.101601},
  url      = {}
URL Phys. Rev. Lett. 127 (2021) 101601
URL arXiv:2011.12968 [hep-th]
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