Now showing items 1-3 of 3

    • Bloch oscillations of bosonic lattice polarons 

      Grusdt, Fabian; Shashi, A.; Abanin, Dmitry; Demler, Eugene A. (American Physical Society (APS), 2014)
      We consider a single-impurity atom confined to an optical lattice and immersed in a homogeneous Bose-Einstein condensate (BEC). Interaction of the impurity with the phonon modes of the BEC leads to the formation of a stable ...
    • Measuring Z 2 topological invariants in optical lattices using interferometry 

      Grusdt, Fabian; Abanin, Dmitry; Demler, Eugene A. (American Physical Society (APS), 2014)
      We propose an interferometric method to measure ℤ2 topological invariants of time-reversal invariant topological insulators realized with optical lattices in two and three dimensions. We suggest two schemes which both rely ...
    • Radio-frequency spectroscopy of polarons in ultracold Bose gases 

      Shashi, Aditya; Grusdt, Fabian; Abanin, Dmitry; Demler, Eugene A. (American Physical Society (APS), 2014)
      Recent experimental advances enabled the realization of mobile impurities immersed in a Bose-Einstein condensate (BEC) of ultracold atoms. Here, we consider impurities with two or more internal hyperfine states, and study ...