Dimensional crossover for universal scaling far from equilibrium

Abstract

We perform a dynamical finite-size scaling analysis of a nonequilibrium Bose gas which is confined in the transverse plane. Varying the transverse size, we establish a dimensional crossover for universal scaling properties far from equilibrium. Our results suggest that some aspects of the dynamical universal behavior of anisotropic systems can be classified in terms of fractional spatial dimensions. We discuss our findings in view of recent experimental results with quasi one-dimensional setups of quenched ultracold quantum gases.

arXiv comment9 pages, 7 figures

References in corpus (22)

• SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
• Observation of a Strongly-Interacting Degenerate Fermi Gas of Atoms
• Evolution of a Bose-condensed gas under variations of the confining potential
• Non-thermal fixed points: effective weak-coupling for strongly correlated systems far from equilibrium
• Turbulent Thermalization
• Observation of universal dynamics in a spinor Bose gas far from equilibrium
• Turbulent thermalization process in heavy-ion collisions at ultrarelativistic energies
• QCD thermalization: Ab initio approaches and interdisciplinary connections
• Observation of universal dynamics in an isolated one-dimensional Bose gas far from equilibrium
• Exact hydrodynamics of a trapped dipolar Bose-Einstein condensate
• Frictionless quantum quenches in ultracold gases: a quantum dynamical microscope
• Universal self-similar dynamics of relativistic and nonrelativistic field theories near nonthermal fixed points
• Universality far from equilibrium: From superfluid Bose gases to heavy-ion collisions
• Split-step Fourier methods for the Gross-Pitaevskii equation
• Scaling approach to quantum non-equilibrium dynamics of many-body systems
• Observation of the Efimovian Expansion in Scale Invariant Fermi Gases
• Bidirectional dynamic scaling in an isolated Bose gas far from equilibrium
• Kinetic theory of non-thermal fixed points in a Bose gas
• Non-thermal fixed points: Universal dynamics far from equilibrium
• Large-N kinetic theory for highly occupied systems
• Universal prethermal dynamics in Heisenberg ferromagnets
• Observation of Dynamical Super Efimovian Expansion in a Unitary Fermi Gas

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• Anomalous scaling at non-thermal fixed points of the sine-Gordon model
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• Detecting defect dynamics in relativistic field theories far from equilibrium using topological data analysis
• Double sine-Gordon class of universal coarsening dynamics in a spin-1 Bose gas
• Kelvin waves in nonequilibrium universal dynamics of relativistic scalar field theories
• Anomalous non-thermal fixed point in a quasi-two-dimensional dipolar Bose gas