1. Emergence of Isotropy and Dynamic Scaling in 2D Wave Turbulence in a Homogeneous Bose Gas
- Author
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Maciej Gałka, Panagiotis Christodoulou, Martin Gazo, Andrey Karailiev, Nishant Dogra, Julian Schmitt, Zoran Hadzibabic, Gałka, Maciej [0000-0002-9456-1073], Christodoulou, Panagiotis [0000-0001-7800-9484], Gazo, Martin [0000-0003-2387-7545], Karailiev, Andrey [0000-0002-8177-4870], Dogra, Nishant [0000-0002-7630-4719], Schmitt, Julian [0000-0002-0002-3777], Hadzibabic, Zoran [0000-0002-0118-9285], and Apollo - University of Cambridge Repository
- Subjects
Statistical Mechanics (cond-mat.stat-mech) ,Atomic Physics (physics.atom-ph) ,Fluid Dynamics (physics.flu-dyn) ,General Physics and Astronomy ,FOS: Physical sciences ,Physics - Fluid Dynamics ,5108 Quantum Physics ,Physics - Atomic Physics ,5102 Atomic, Molecular and Optical Physics ,Quantum Gases (cond-mat.quant-gas) ,Condensed Matter - Quantum Gases ,51 Physical Sciences ,Condensed Matter - Statistical Mechanics ,40 Engineering - Abstract
We realise a turbulent cascade of wave excitations in a homogeneous 2D Bose gas, and probe on all relevant time and length scales how it builds up from small to large momenta, until the system reaches a steady state with matching energy injection and dissipation. This all-scales view directly reveals the two theoretically expected cornerstones of turbulence formation -- the emergence of statistical momentum-space isotropy under anisotropic forcing, and the spatiotemporal scaling of the momentum distribution at times before any energy is dissipated.
- Published
- 2022
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