795 citations · 6.2k across the 150 of their papers we have counts for
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Renormalization group approach to the Fröhlich polaron model: application to impurity-BEC problem
F. Grusdt, Y. E. Shchadilova, A. N. Rubtsov +1
We develop a renormalization group approach for analyzing Fröhlich polarons and apply it to a problem of impurity atoms immersed in a Bose-Einstein condensate of ultra cold atoms.…
Bloch oscillations of bosonic lattice polarons
Fabian Grusdt, Aditya Shashi, Dmitry Abanin +1
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…
Polaronic mass renormalization of impurities in BEC: correlated Gaussian wavefunction approach
Yulia E. Shchadilova, Fabian Grusdt, Alexey N. Rubtsov +1
We propose a class of variational Gaussian wavefunctions to describe Fröhlich polarons at finite momenta. Our wavefunctions give polaron energies that are in excellent agreement wi…
Realization of Fractional Chern Insulators in the Thin-Torus-Limit with Ultracold Bosons
Fabian Grusdt, Michael Höning
Topological states of interacting many-body systems are at the focus of current research due to the exotic properties of their elementary excitations. In this paper we suggest a re…
Topological growing of Laughlin states in synthetic gauge fields
Fabian Grusdt, Fabian Letscher, Mohammad Hafezi +1
We suggest a scheme for the preparation of highly correlated Laughlin (LN) states in the presence of synthetic gauge fields, realizing an analogue of the fractional quantum Hall ef…
Measuring Z2 topological invariants in optical lattices using interferometry
Fabian Grusdt, Dmitry Abanin, Eugene Demler
We propose an interferometric method to measure Z2 topological invariants of time-reversal invariant topological insulators realized with optical lattices in two and three dimensio…
Radio frequency spectroscopy of polarons in ultracold Bose gases
Aditya Shashi, Fabian Grusdt, Dmitry A. Abanin +1
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 m…