30 citations · 118 across the 25 of their papers we have counts for
4 papers · 1 filter
An exact expression of the collective excitation energy gap of fractional quantum Hall effect
Yu-Liang Liu
We have exactly solved the eigenequation of a two-dimensional Dirac fermion moving on the surface of a sphere under the influence of a radial magnetic field B, and obtained an exac…
Finite Size Scaling for Low Energy Excitations in Integer Heisenberg Spin Chains
Shaojin Qin, Yu-Liang Liu, Lu Yu
In this paper we study the finite size scaling for low energy excitations of and Heisenberg chains, using the density matrix renormalization group technique. A crossove…
Non-Fermi liquid behavior in an extended Anderson model
Yu-Liang Liu, Zhao-Bin Su, Lu Yu
An extended Anderson model, including screening channels (non-hybridizing, but interacting with the local orbit), is studied within the Anderson-Yuval approach, originally devised…
Normal state property of the t-J model
Yu-Liang Liu
Using the spin-hole coherent state representation and taking a long range antiferromagnetic Nèel order as a background of the localized spin degree part, we have studied the normal…