511 citations · 4k across the 79 of their papers we have counts for
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Thermoelectricity in a junction between interacting cold atomic Fermi gases
Tibor Sekera, Christoph Bruder, Wolfgang Belzig
A gas of interacting ultracold fermions can be tuned into a strongly interacting regime using a Feshbach resonance. Here we theoretically study quasiparticle transport in a system…
Fragmented Superradiance of a Bose-Einstein Condensate in an Optical Cavity
Axel U. J. Lode, Christoph Bruder
The Dicke model and the superradiance of two-level systems in a radiation field have many applications. Recently, a Dicke quantum phase transition has been realized with a Bose-Ein…
Dynamics of Hubbard Hamiltonians with the multiconfigurational time-dependent Hartree method for indistinguishable particles
Axel U. J. Lode, Christoph Bruder
We apply the multiconfigurational time-dependent Hartree method for indistinguishable particles (MCTDH-X) to systems of bosons or fermions in lattices described by Hubbard type Ham…
Mean-Field Analysis of Spinor Bosons in Optical Superlattices
Andreas Wagner, Andreas Nunnenkamp, Christoph Bruder
We study the ground-state phase diagram of spinless and spin-1 bosons in optical superlattices using a Bose-Hubbard Hamiltonian that includes spin-dependent interactions. We decoup…
Spin-1 Atoms in Optical Superlattices: Single-Atom Tunneling and Entanglement
Andreas Wagner, Christoph Bruder, Eugene Demler
We examine spinor Bose-Einstein condensates in optical superlattices theoretically using a Bose-Hubbard Hamiltonian that takes spin effects into account. Assuming that a small numb…
A single fermion in a Bose Josephson Junction
Maximilian Rinck, Christoph Bruder
We consider the tunneling properties of a single fermionic impurity immersed in a Bose-Einstein condensate in a double-well potential. For strong boson-fermion interaction, we show…