Hydrodynamic attractor in periodically driven ultracold quantum gases
Abstract
Hydrodynamic attractors are a universal phenomenon of strongly interacting systems that describe the hydrodynamic-like evolution far from local equilibrium. In particular, the rapid hydrodynamization of the Quark-Gluon Plasma is behind the remarkable success of hydrodynamic models of high-energy nuclear collisions. So far, hydrodynamic attractors have been explored only in systems undergoing monotonic expansion, such as Bjorken flow. We demonstrate that a system with an oscillating isotropic expansion exhibits a novel cyclic attractor behavior. This phenomenon can be investigated in ultracold quantum gases with externally modulated scattering length, offering a new avenue for experimentally discovering hydrodynamic attractors.
Cite
@article{arxiv.2501.19240,
title = {Hydrodynamic attractor in periodically driven ultracold quantum gases},
author = {Aleksas Mazeliauskas and Tilman Enss},
journal= {arXiv preprint arXiv:2501.19240},
year = {2026}
}
Comments
9 pages, 5 figures; introduced temperature dependent relaxation time in kinetic theory simulations; added non-equilibrium initial conditions; published version