Numerical Simulation of mobile BEC-impurity interaction

ORAL

Abstract

Cooling atoms to temperatures, where quantum effects become dominant, has become a standard in cold atom experiments. Especially interactions of quantum baths such as fermi gases and the implementation of impurities, which form fermi polarons, have been studied theoretically and experimentally in detail. However, detailed experiments on the bose polaron and the interaction between impurities and a bose gas are still elusive. We consider a model, where we immerse a single impurity into a BEC, which is described by Bogoliubov approximation. From the master equation, we derived the impurity's momentum resolved scattering and cooling dynamics for numerical simulations. Such cooling processes should enable momentum resolved radio-frequency spectroscopy of the BEC polaron.

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Authors

  • Tobias Lausch

    • Department of Physics and Research Center OPTIMAS, University of Kaiserslautern, Germany

  • Fabian Grusdt

    • Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
    • Department of Physics, Harvard University, Cambridge MA, USA

  • Michael Fleischhauer

    • Dept. of Physics and research center OPTIMAS, Univ Kaiserslautern
    • Department of Physics and Research Center OPTIMAS, University of Kaiserslautern
    • Department of Physics and Research Center OPTIMAS, University of Kaiserslautern, Germany
    • Department of Physics and State Research Center OPTIMAS, University of Kaiserslautern, 67663 Kaiserslautern, Germany

  • Artur Widera

    • Department of Physics and Research Center OPTIMAS, University of Kaiserslautern, Germany