118 citations · 1k across the 44 of their papers we have counts for
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cond-mat.str-el2014★ 30 cited
Local Quantum Criticality in the Two-dimensional Dissipative Quantum XY Model
Lijun Zhu, Yan Chen, Chandra M. Varma
We use quantum Monte-Carlo simulations to calculate the phase diagram and the correlation functions for the quantum phase transitions in the two-dimensional dissipative XY model wi…
cond-mat.stat-mech2014
An analytical approach to quantum phase transitions of ultracold Bose systems in bipartite optical lattices: Along the avenue of Green's function
Zhi Lin, Jun Zhang, Yan Chen +1
In this paper, we present a generalized Green's function method which can be used to investigate the quantum phase transitions analytically in a systematic way for ultracold Bose s…