• DocumentCode
    1993663
  • Title

    Non-equilibrium flows and superfluid turbulence in finite temperature dilute gas Bose-Einstein condensates

  • Author

    Davis, Matthew J. ; Wright, Tod M. ; Simula, Tapio ; Feng, Chao ; Garrett, Michael C.

  • Author_Institution
    Sch. of Math. & Phys., Univ. of Queensland, Brisbane, QLD, Australia
  • fYear
    2011
  • fDate
    Aug. 28 2011-Sept. 1 2011
  • Firstpage
    1074
  • Lastpage
    1075
  • Abstract
    Dilute gas Bose-Einstein condensates (BECs) are an example of a superfluid, and exhibit many of the same phenomena as the strongly interacting superfluid helium. However, their isolation from the environment combined with their inhomogeneous density profiles make it difficult to observe some phenomena, such as the thermo-mechanical effect, in experiments. Here we perform dynamical simulations of a finite temperature Bose-Einstein condensate coupled to spatially separated heat and particle reservoirs to observe such non-equilibrium superfluid phenomena. We analyse the resulting steady-state non-equilibrium flows in the BEC, and consider the prospect of observing sustained superfluid turbulence.
  • Keywords
    Bose-Einstein condensation; heat transfer; nonequilibrium flow; superfluidity; turbulence; Bose-Einstein condensates; finite temperature dilute gas; inhomogeneous density profiles; nonequilibrium superfluid phenomena; spatially separated heat reservoirs; spatially separated particle reservoirs; steady-state nonequilibrium flows; strongly interacting superfluid helium; superfluid isolation; superfluid turbulence; thermomechanical effect; Geometry; Heating; Helium; Reservoirs; Steady-state; Thermodynamics; Thermomechanical processes;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Quantum Electronics Conference & Lasers and Electro-Optics (CLEO/IQEC/PACIFIC RIM), 2011
  • Conference_Location
    Sydney, NSW
  • Print_ISBN
    978-1-4577-1939-4
  • Type

    conf

  • DOI
    10.1109/IQEC-CLEO.2011.6194108
  • Filename
    6194108