Sun Jian-Fang, Cui Guo-Dong, Jiang Bo-Nan, Qian Jun, Wang Yu-Zhu
Chin. Phys. B 2013, 22 (11): 110307
We theoretically investigate quantum phases and transport dynamics of ultracold atoms trapped in an optical lattice in the presence of effective multi-body interaction. When a harmonic external potential is added, several interesting phenomena are revealed, such as the broadening and the emergence o...

Zhang Yi-Fu, Yang Yun-You, Ju Yan, Sheng Li, Shen Rui, Sheng Dong-Ning, Xing Ding-Yu
Chin. Phys. B 2013, 22 (11): 117312
The Chern number is often used to distinguish different topological phases of matter in two-dimensional electron systems. A fast and efficient coupling-matrix method is designed to calculate the Chern number in finite crystalline and disordered systems. To show its effectiveness, we apply the approa...

Fan Jie, Zhang Bo, Luo Xiao-Rong, Li Zhao-Ji
Chin. Phys. B 2013, 22 (11): 118502
A new silicon-on-insulator (SOI) power lateral MOSFET with a dual vertical field plate (VFP) in the oxide trench is proposed. The dual VFP modulates the distribution of the electric field in the drift region, which enhances the internal field of the drift region and increases the drift doping concen...