Anisotropic turbulence of a dipolar exciton Bose-Einstein condensate in coupled quantum wells

POSTER

Abstract

We report formation of turbulence in a non-equilibrium Bose-Einstein condensate (BEC) of dipolar excitons trapped in a confining parabolic potential. This turbulent state is characterized by strong non-equilibrium oscillations of the occupation numbers for the excitons states in the presence of the energy source and exciton decay. By considering the potentials where a spring constant in one direction differs from that in another direction, we study a transition from isotropic two-dimensional turbulence to anisotropic turbulence and then, to quasi-one dimensional turbulence. We discuss application of the theory of wave turbulence to the description of turbulent states in an exciton BEC.

Authors

  • George Tishinski

    • New York City College of Technology, City University of New York

  • Oleg Berman

    • New York City College of Technology, City University of New York
    • Physics Department, New York City College of Technology, The City University of New York, Brooklyn, NY 11201, USA

  • German Kolmakov

    • New York City College of Technology, City University of New York