432 citations · 1.2k across the 21 of their papers we have counts for
7 papers · 1 filter
Quantum phase transition in an array of coupled dissipative cavities
Ke Liu, Lei Tan, C. -H Lv +1
The features of superfluid-Mott insulator phase transition in the array of dissipative nonlinear cavities are analyzed. We show analytically that the coupling to the bath can be re…
Unbounded quantum Fisher information in two-path interferometry with finite photon number
Y. R. Zhang, G. R. Jin, J. P. Cao +2
The minimum error of unbiased parameter estimation is quantified by the quantum Fisher information in accordance to the Cramér-Rao bound. We indicate that only superposed NOON stat…
Directed coherent transport due to Bloch oscillation in two dimensions
J. M. Zhang, W. M. Liu
We point out that in higher dimensions, in contrast to the one dimensional case considered usually, Bloch oscillation driven by a static force can induce transport of the wave pack…
Evolution equation for entanglement of assistance
Zong-Guo Li, Ming-Jing Zhao, Shao-Ming Fei +1
We investigate the time evolution of the entanglement of assistance when one subsystem undergoes the action of local noisy channels. A general factorization law is presented for th…
Abelian and Non-Abelian Quantum Geometric Tensor
Yu-Quan Ma, Shu Chen, Heng Fan +1
We propose a generalized quantum geometric tenor to understand topological quantum phase transitions, which can be defined on the parameter space with the adiabatic evolution of a…
Nonlinear dynamics of a cigar-shaped Bose-Einstein condensate coupled with a single cavity mode
J. M. Zhang, F. C. Cui, D. L. Zhou +1
We investigate the nonlinear dynamics of a combined system which is composed of a cigar-shaped Bose-Einstein condensate and an optical cavity. The two sides couple dispersively. Th…