Universal Coarsening in a Homogeneous Two-Dimensional Bose Gas

• URL: http://arxiv.org/abs/2312.09248v2
• Date: Thu, 1 Feb 2024 18:50:27 GMT
• Title: Universal Coarsening in a Homogeneous Two-Dimensional Bose Gas
• Authors: Martin Gazo, Andrey Karailiev, Tanish Satoor, Christoph Eigen, Maciej Ga{\l}ka, Zoran Hadzibabic
• Abstract summary: Coarsening of an isolated far-from-equilibrium quantum system is a paradigmatic many-body phenomenon. We observe universal scaling in the coarsening of a homogeneous two-dimensional Bose gas, with exponents that match analytical predictions.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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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