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cond-mat.quant-gas2010★ 58 cited
Bose-Hubbard model with occupation dependent parameters
Omjyoti Dutta, Andre Eckardt, Philipp Hauke +2
We study the ground-state properties of ultracold bosons in an optical lattice in the regime of strong interactions. The system is described by a non-standard Bose-Hubbard model wi…
cond-mat.quant-gas2009★ 153 cited
Frustrated quantum antiferromagnetism with ultracold bosons in a triangular lattice
Andre Eckardt, Philipp Hauke, Parvis Soltan-Panahi +3
We propose to realize the anisotropic triangular-lattice Bose-Hubbard model with positive tunneling matrix elements by using ultracold atoms in an optical lattice dressed by a fast…