73 citations · 607 across the 19 of their papers we have counts for
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cond-mat.quant-gas2016★ 9 cited
Bosonic Josephson effect in the Fano-Anderson model
G. Engelhardt, G. Schaller, T. Brandes
We investigate the coherent dynamics of a non-interacting Bose-Einstein condensate in a system consisting of two bosonic reservoirs coupled via a spatially localized mode. We descr…
cond-mat.quant-gas2015★ 63 cited
Topological Bogoliubov excitations in inversion-symmetric systems of interacting bosons
G. Engelhardt, T. Brandes
On top of the mean-field analysis of a Bose-Einstein condensate, one typically applies the Bogoliubov theory to analyze quantum fluctuations of the excited modes. Therefore, one ha…
cond-mat.quant-gas2014★ 47 cited
Excited-state quantum phase transitions and periodic dynamics
G. Engelhardt, V. M. Bastidas, W. Kopylov +1
We investigate signatures of the excited-state quantum phase transition in the periodic dynamics of the Lipkin-Meshkov-Glick model and the Tavis-Cummings model. In the thermodynami…