66 citations · 130 across the 4 of their papers we have counts for
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cond-mat.str-el2006★ 58 cited
Nature of the Quantum Phase Transition in Quantum Compass Model
Han-Dong Chen, Chen Fang, Jiangping Hu +1
In this work, we show that the quantum compass model on an square lattice can be mapped to a fermionic model with local density interaction. We introduce a mean-field approximation…
cond-mat.str-el2002★ 66 cited
Vortex configurations of bosons in an optical lattice
Congjun Wu, Han-dong Chen, Jiang-ping Hu +1
The single vortex problem in a strongly correlated bosonic system is investigated self-consistently within the mean-field theory of the Bose-Hubbard model. Near the superfluid-Mott…