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arXiv · 2312.09248

Universal Coarsening in a Homogeneous Two-Dimensional Bose Gas

Martin Gazo·Andrey Karailiev·Tanish Satoor·Christoph Eigen·Maciej Gałka·Zoran Hadzibabic
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Abstract

Coarsening of an isolated far-from-equilibrium quantum system is a paradigmatic many-body phenomenon, relevant from subnuclear to cosmological lengthscales, and predicted to feature universal dynamic scaling. Here, we observe universal scaling in the coarsening of a homogeneous two-dimensional Bose gas, with exponents that match analytical predictions. For different initial states, we reveal universal scaling in the experimentally accessible finite-time dynamics by elucidating and accounting for the initial-state-dependent prescaling effects. The methods we introduce establish direct comparison between cold-atom experiments and non-equilibrium field theory, and are applicable to any study of universality far from equilibrium.

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Martin Gazo, Andrey Karailiev, Tanish Satoor, Christoph Eigen, Maciej Gałka, Zoran Hadzibabic. 2023-12-14. Universal Coarsening in a Homogeneous Two-Dimensional Bose Gas. https://doi.org/10.1126/science.ado3487

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