Generalized hydrodynamics in strongly interacting 1D Bose gases

Neel Malvania, Yicheng Zhang, Yuan Le, Jerome Dubail, Marcos Rigol, David S. Weiss

Research output: Contribution to journalArticlepeer-review

40 Scopus citations


The dynamics of strongly interacting many-body quantum systems are notoriously complex and difficult to simulate. A recently proposed theory called generalized hydrodynamics (GHD) promises to efficiently accomplish such simulations for nearly integrable systems. We test GHD with bundles of ultracold one-dimensional (1D) Bose gases by performing large trap quenches in both the strong and intermediate coupling regimes. We find that theory and experiment agree well over dozens of trap oscillations, for average dimensionless coupling strengths that range from 0.3 to 9.3. Our results show that GHD can accurately describe the quantum dynamics of a 1D nearly integrable experimental system even when particle numbers are low and density changes are large and fast.

Original languageEnglish (US)
Pages (from-to)1129-1133
Number of pages5
Issue number6559
StatePublished - Sep 3 2021

All Science Journal Classification (ASJC) codes

  • General


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