6 papers
Few is different: deciphering many-body dynamics in mesoscopic quantum gases
Juergen Berges, Sandra Brandstetter, Jasmine Brewer +27
Emergent macroscopic descriptions of matter, such as hydrodynamics, are central to our description of complex physical systems across a wide spectrum of energy scales. The conventi…
An Equation of State for Turbulence in the Gross-Pitaevskii model
Gevorg Martirosyan, Kazuya Fujimoto, Nir Navon
We report the numerical observation of a far-from-equilibrium equation of state (EOS) in the Gross-Pitaevskii model. We first show that the momentum distribution of the turbulent c…
The Kubo-Thermalization Correspondence
Songtao Huang, Xingyu Li, Jianyi Chen +5
Quantum thermalization describes how interacting quantum systems relax toward thermal equilibrium, a central problem in modern physics. Yet most experimental information on many-bo…
Core-bound waves on a Gross-Pitaevskii vortex
Evan Papoutsis, Nathan Apfel, Nir Navon
We find the dispersion relations of two elusive families of core-bound excitations of the Gross-Pitaevskii (GP) vortex, varicose (axisymmetric) and fluting (quadrupole) waves. For…
Dispersion of first sound in a weakly interacting ultracold Fermi liquid
Thomas Repplinger, Songtao Huang, Yunpeng Ji +2
At low temperature, a normal gas of unpaired spin-1/2 fermions is one of the cleanest realizations of a Fermi liquid. It is described by Landau's theory, where no phenomenological…
Emergence of Fermi's Golden Rule in the Probing of a Quantum Many-Body System
Jianyi Chen, Songtao Huang, Yunpeng Ji +6
Fermi's Golden Rule (FGR) is one of the most impactful formulas in quantum mechanics, providing a link between easy-to-measure observables - such as transition rates - and fundamen…