Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

arXiv:1612.08980 · Annals of Physics

Analogue stochastic gravity in strongly-interacting Bose–Einstein condensates

Aydın Cem Keser, Victor Galitski

Published May 24, 2018• 9 citations
arXivHTMLPDF
DOI
10.1016/j.aop.2018.05.009

Related papers

Synthetic gauge potentials and analogue gravity in Bose-Einstein condensates

Salvatore Butera

•Sep 1, 2017•2 citations

Analogue gravity with Bose-Einstein condensates

Adrià Delhom, Luca Giacomelli

Analogue gravity explores how collective excitations in condensed matter systems can reproduce the behavior of fields in curved spacetimes. An important example is the acoustic black holes that can occur for sound in a moving fluid. In these lecture notes, we focus on atomic Bose-Einstein condensates (BECs), quantum fluids that provide an interesting platform for analogue gravity studies thanks to their accurate theoretical description, remarkable experimental control, and ultralow temperatures that allow the quantum nature of sound to emerge. We give a pedagogical introduction to analogue black holes and the theoretical description of BECs and their elementary excitations, which behave as quantum fields in curved spacetimes. We then apply these tools to survey the current understanding of black-hole superradiance and analogue Hawking radiation, including explicit examples and numerical methods.

gr-qcCross-listedarXiv:2512.14209•Dec 17, 2025•0 citations

Dynamical mean-field study of strongly interacting Bose–Einstein condensate

Victo S. Filho, Lauro Tomio, A. Gammal +1 more

Physics Letters A•Apr 23, 2004•8 citations

Analogue stochastic gravity phenomena in two-component Bose-Einstein condensates: Sound cone fluctuations

Wei-Can Syu, Da-Shin Lee, Chi-Yong Lin

We investigate the properties of the condensates of cold atoms at zero temperature in the tunable binary Bose-Einstein condensate system with a Rabi transition between atomic hyperfine states. We use this system to examine the effect of quantum fluctuations in a tunable quantum gas on phonon propagation. We show that the system can be represented by a coupled two-field model of a gapless phonon and a gapped mode, which are analogous to the Goldstone and Higgs particles in particle physics. We then further trace out the gapped modes to give an effective purely phononic theory using closed-time-path formalism. In particular, we are interested in the sound cone fluctuations due to the variation of the speed-of-sound acoustic metric, induced by quantum fluctuations of the gapped modes. These fluctuations can be interpreted as inducing a stochastic space-time, and thus are regarded as analogue phenomena of light cone fluctuations presumably arising from quantum gravity effects. The effects of fluctuations can be displayed in the variation in the travel time of sound waves. We suggest the relevant experiments to discuss the possibility of experimental observations.

arXiv:1901.11187•Physical review. D/Physical review. D.•May 7, 2019•7 citations

Non-local interactions in a BEC: an analogue gravity perspective

Supratik Sarkar, A Bhattacharyay

We add a minimal correction term to the local Gross–Pitaevskii equation to represent non-locality in the interactions. We show that the effective minimal non-locality can make the healing length decrease more rapidly with the increase of s-wave scattering length leaving the expression of the velocity of sound unaltered. We discuss the implication of this result for a Bose–Einstein condensate being used as an analogue gravity system. The presented result is important in the context of condensed matter physics as well because one can considerably change the size of a quantized vortex at finite s-wave scattering length by tuning the healing length.

arXiv:1307.8231•Journal of Physics A Mathematical and Theoretical•Feb 18, 2014•31 citations

Probing Signatures of Quantum Gravity Using Bose-Einstein Condensates

Charles Wang

cosp•Jan 1, 2010•0 citations
Analogue gravity explores how collective excitations in condensed matter systems can reproduce the behavior of fields in curved spacetimes. An important example is the acoustic black holes that can occur for sound in a moving fluid. In these lecture notes, we focus on atomic Bose-Einstein condensates (BECs), quantum fluids that provide an interesting platform for analogue gravity studies thanks to their accurate theoretical description, remarkable experimental control, and ultralow temperatures that allow the quantum nature of sound to emerge. We give a pedagogical introduction to analogue black holes and the theoretical description of BECs and their elementary excitations, which behave as quantum fields in curved spacetimes. We then apply these tools to survey the current understanding of black-hole superradiance and analogue Hawking radiation, including explicit examples and numerical methods.
We investigate the properties of the condensates of cold atoms at zero temperature in the tunable binary Bose-Einstein condensate system with a Rabi transition between atomic hyperfine states. We use this system to examine the effect of quantum fluctuations in a tunable quantum gas on phonon propagation. We show that the system can be represented by a coupled two-field model of a gapless phonon and a gapped mode, which are analogous to the Goldstone and Higgs particles in particle physics. We then further trace out the gapped modes to give an effective purely phononic theory using closed-time-path formalism. In particular, we are interested in the sound cone fluctuations due to the variation of the speed-of-sound acoustic metric, induced by quantum fluctuations of the gapped modes. These fluctuations can be interpreted as inducing a stochastic space-time, and thus are regarded as analogue phenomena of light cone fluctuations presumably arising from quantum gravity effects. The effects of fluctuations can be displayed in the variation in the travel time of sound waves. We suggest the relevant experiments to discuss the possibility of experimental observations.
We add a minimal correction term to the local Gross–Pitaevskii equation to represent non-locality in the interactions. We show that the effective minimal non-locality can make the healing length decrease more rapidly with the increase of s-wave scattering length leaving the expression of the velocity of sound unaltered. We discuss the implication of this result for a Bose–Einstein condensate being used as an analogue gravity system. The presented result is important in the context of condensed matter physics as well because one can considerably change the size of a quantized vortex at finite s-wave scattering length by tuning the healing length.