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SUMMARY:Prof. Ashton Bradley\, Regimes of turbulence in a quantum fluid
DTSTART:20260720T123000Z
DTEND:20260720T133000Z
DTSTAMP:20260721T181400Z
UID:indico-event-1896@indico.dfa.unipd.it
DESCRIPTION:Speakers: Ashton Bradley (University of Otago)\n\nTurbulence r
 emains one of the central open problems in physics\, and in quantum fluids
  the underlying dynamics are unusually well-characterized and controllable
 . In these systems\, energy can flow through both wave-like excitations an
 d topological defects\, raising a basic question: how do different forms o
 f turbulence emerge and interact in a single\, coherent medium?\nMotivated
  by experimental developments\, I will discuss our recent theoretical work
  on driven Bose–Einstein condensates that reveals distinct regimes of st
 eady-state turbulence as forcing is increased\, spanning wave-dominated dy
 namics\, mixed states\, and dense vortex turbulence. These regimes are ide
 ntified through their spectral signatures\, vortex distributions\, and spa
 tial correlations\, and revealing how quantum turbulence emerges and organ
 izes across scales. In addition to confirming the weak-wave regime reporte
 d at low forcing\, high-resolution spectral analysis reveals signatures of
  an inverse-particle cascade of acoustic energy in the strongly driven reg
 ime.\n\nhttps://indico.dfa.unipd.it/event/1896/
LOCATION:1/3-1 - Sala R (Dipartimento di Fisica e Astronomia - Edificio Ma
 rzolo)
URL:https://indico.dfa.unipd.it/event/1896/
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