From inverse-cascade to sub-diffusive dynamic scaling in driven disordered Bose fluids
arXiv:2405.15915 · doi:10.1103/PhysRevLett.133.233403
Abstract
We explore the emergence of universal dynamic scaling in an interacting Bose gas around the condensation transition, under the combined influence of an external driving force and spatial disorder. As time progresses, we find that the Bose gas crosses over three distinct dynamical regimes: (i) an inverse turbulent cascade where interactions dominate the drive, (ii) a stationary regime where the inverse cascade and the drive counterbalance one other, and (iii) a sub-diffusive cascade in energy space governed by the drive and disorder, a phenomenon recently observed experimentally. We show that all three dynamical regimes can be described by self-similar scaling laws.
Article and supplemental material
References in corpus (19)
- Many body localization and thermalization in quantum statistical mechanics
- Ultracold atoms out of equilibrium
- Non-thermal fixed points: effective weak-coupling for strongly correlated systems far from equilibrium
- Quantum Gases in Optical Boxes
- Coherent Backscattering of Ultracold Atoms
- Dynamical phase transitions in the collisionless pre-thermal states of isolated quantum systems: theory and experiments
- Universal dynamics of a turbulent superfluid Bose gas
- Emergence of isotropy and dynamic scaling in 2D wave turbulence in a homogeneous Bose gas
- Matrix-valued Boltzmann Equation for the Hubbard Chain
- Universal Scaling of the Dynamic BKT Transition in Quenched 2D Bose Gases
- Numerical analysis of a self-similar turbulent flow in Bose--Einstein condensates
- Coherent multiple scattering of out-of-equilibrium interacting Bose gases
- Non-equilibrium pre-thermal states in a two-dimensional photon fluid
- Weakly interacting disordered Bose gases out of equilibrium: from multiple scattering to superfluidity
- Self-similar evolution of wave turbulence in Gross-Pitaevskii system
- Observation of subdiffusive dynamic scaling in a driven and disordered Bose gas
- Prethermalization and wave condensation in a nonlinear disordered Floquet system
- Dynamical emergence of a Kosterlitz-Thouless transition in a disordered Bose gas following a quench
- Energy-space random walk in a driven disordered Bose gas