From inverse-cascade to sub-diffusive dynamic scaling in driven disordered Bose fluids

Autor:	Gliott, Elisabeth, Rançon, Adam, Cherroret, Nicolas
Rok vydání:	2024
Předmět:	Condensed Matter - Quantum Gases Quantum Physics
Druh dokumentu:	Working Paper
Popis:	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. Comment: Article and supplemental material
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2405.15915 Zobrazit plný text záznamu View this record from Arxiv