Browsing by Author "Bohrdt Grusdt, Fabian"

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    • 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 ...

    • Imaging Magnetic Polarons in the Doped Fermi–Hubbard Model 

      Demler, Eugene; Koepsell, Joannis; Vijayan, Jayadev; Sompet, Pimonpan; Bohrdt Grusdt, Fabian; Hilker, Timon A.; Demler, Eugene; Salomon, Guillaume; Bloch, Immanuel; Gross, Christian (Springer Science and Business Media LLC, 2019-08-14)
      Polarons are among the most fundamental quasiparticles emerging in interacting many-body systems, forming already at the level of a single mobile dopant [1]. In the context of the two- dimensional ...

    • 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 ...