Solitons and vortices in an evolving Bose-Einstein condensate (2008)
Yang, Shi-Jie, Wu, Quan-Sheng, Feng, Shiping, Wen, Yu-Chuan, Yu, Yue
Spatiotemporal evolution of a confined Bose-Einstein condensate is studied by numerically integrating the time-dependent Gross-Pitaevskii equation. Self-interference between the successively...
Giant vortex and Skyrmion in a rotating two-species Bose-Einstein condensate (2007)
Yang, Shi-Jie, Wu, Quan-Sheng, Zhang, Sheng-Nan, Feng, Shiping
Numerical simulations are performed for a rotating two-species Bose condensate confined by a harmonic potential. The particle numbers of each species are unequal. When the rotational speed exceeds a...
The Extended Bose Hubbard Model on the Two Dimensional Honeycomb Lattice (2007)
Gan, Jing Yu, Wen, Yu Chuan, Ye, Jinwu, Li, Tao, Yang, Shi-Jie, Yu, Yue
We study the extended Bose-Hubbard model on a two-dimensional honeycomb lattice by using large scale quantum Monte Carlo simulations. We present the ground state phase diagrams for both the hard-core...
Periodicity of the giant vortex states in mesoscopic superconducting rings (2005)
Zhao, Hu, Yang, Shi-jie, Feng, Shiping
The giant vortex states of a multiply connected superconductor, with radius comparable to the penetration depth and the coherence length, are theoretically investigated based on the nonlinear...
Generating multi-scaling networks with different types of nodes (2005)
A variety of scale-free networks have been created since the pioneer work by A.-L. Barab\'{a}si and R. Albert. All this networks are homogeneous since they are composed of the same kind of nodes. In...
Anisotropic transport for $\nu=2/5$ FQH state at intermediate magnetic field (2005)
Yang, Shi-Jie, Yu, Yue, Zhu, Bang-Fen
The $\nu=2/5$ state is spin-unpolarized at weak magnetic field and fully polarized at strong field. At intermediate field, a plateau of half the maximal polarization is observed. We study this...
Interaction of a surface acoustic wave with a two-dimensional electron gas (2005)
Yang, Shi-Jie, Zhao, Hu, Yu, Yue
When a surface acoustic wave propagates on the surface of a GaAs semiconductor, coupling between electrons in the two-dimensional electron gas beneath the interface and the elastic host crystal...
Target-searching on the percolation (2005)
We study target-searching processes on a percolation, on which a hunter tracks a target by smelling odors it emits. The odor intensity is supposed to be inversely proportional to the distance it...
Effect of a tilted magnetic field on the orientation of Wigner crystals (2005)
We study the effect of a tilted magnetic field on the orientation of Wigner crystals by taking account of the width of a quantum well in the $z$-direction. It is found that the cohesive energy of the...
Exploring complex networks by walking on them (2004)
We carry out a comparative study on the problem for a walker searching on several typical complex networks. The search efficiency is evaluated for various strategies. Having no knowledge of the...
Scaling law in target-hunting processes (2004)
We study the hunting process for a target, in which the hunter tracks the goal by smelling odors it emits. The odor intensity is supposed to decrease with the distance it diffuses. The Monte Carlo...
Density-induced reorientation of the stripe at half-filled high Landau levels (2004)
The effect of a unidirectional periodic potential on the orientation of the stripe state is studied for the two-dimensional electron system at half-filled high Landau levels. By considering a quantum...
Temperature dependence of the conductivity of the electronic crystal (2003)
We study the temperature dependence of the conductivity of the 2D electronic solid. In realistic samples, a domain structure forms in the solid and each domain randomly orients in the absence of the...
Lauglin-type wavefunction of two-dimensional electrons in the tilted magnetic field (2002)
Yang, Shi-JIe, Yu, Yue, Li, Jin-Bin
We study the fractional quantum Hall states in the tilted magnetic field. A many-particle wavefunction of the ground state, which is similar to that of Laughlin's, is constructed in the Landau gauge....
Yang, Shi-Jie, Yu, Yue, Su, Zhao-Bin
The ground state cohesive energies per electron of the composite fermion (CF) Fermi sea, the Laughlin state and the charge density wave (CDW) at higher Landau levels (LLs) are computed. It is shown...
Paired Hall States versus Unidirectional CDW in Tilted Field for $\nu={5/2}$ (1999)
Yu, Yue, Yang, Shi-Jie, Su, Zhao-Bin
We formulate the composite fermions in the presence of an in-plane magnetic field. As the in-plane field increases, if we assume the state at $\nu=5/2$ turns into the mixed state between the...