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cond-mat.quant-gas2020★ 28 cited
Interacting bosonic flux ladders with a synthetic dimension: Ground-state phases and quantum quench dynamics
Maximilian Buser, Claudius Hubig, Ulrich Schollwöck +2
Flux ladders constitute the minimal setup enabling a systematic understanding of the rich physics of interacting particles subjected simultaneously to strong magnetic fields and a…
cond-mat.quant-gas2019★ 46 cited
Gaussian time dependent variational principle for the Bose-Hubbard model
Tommaso Guaita, Lucas Hackl, Tao Shi +3
We systematically extend Bogoliubov theory beyond the mean field approximation of the Bose-Hubbard model in the superfluid phase. Our approach is based on the time dependent variat…