30 citations · 118 across the 25 of their papers we have counts for
12 papers · 1 filter
Influence of gauge fluctuations on fermion pairing order parameter
Yu-Liang Liu
Using a prototype model, we study the influence of gauge fluctuations on fermion pairing order parameter which has the gauge symmetry, and demonstrate that the gauge fluctuations c…
Re-examination of electronic transports through a quantum wire coupled to a quantum dot
Yu-Liang Liu, T. K. Ng
In this paper we re-examine the problem of electronic transports through a system consisting of a quantum dot which has well-defined discrete energy levels connected to an infinite…
Universal Behavior of Quantum Impurity Scattering in Tomonaga-Luttinger Liquid
Yu-Liang Liu
Using bosonization and path integral methods, we study general low temperature behavior of non-magnetic and magnetic impurity scattering in Tomonaga-Luttinger liquid, and calculate…
Low Temperature Behavior of the Kondo Effect in Tomonaga-Luttinger Liquid
Yu-Liang Liu
Using the bosonization method, we study the low temperature behavior of the Kondo effect in the Tomonaga-Luttinger liquid and clearly show that the power law temperature dependence…
Conductance of a Finite Quantum Wire Connected to Reservoirs
Yu-Liang Liu
We study a finite quantum wire connected to external leads, and show that the conductance of the system significantly depends upon the length of the quantum wire and the position o…
Low-temperature behavior of a Magnetic Impurity in a Heisenberg Chain
Yu-Liang Liu
Using the bosonization technique, we have studied a spin-1/2 magnetic impurity in Heisenberg chain, and shown that the impurity specific heat and spin susceptibility have an anomal…
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…
The Magnetic Behavior of the t-J Model
Yu-Liang Liu
Using the spin-hole coherent state representation, and taking the long range antiferromagnetic Néel order as the background of the spin degree part, we have studied the magnetic be…
Theory of the Normal State of Cuprate Superconducting Materials
Yu-Liang Liu
We have proposed a model Hamiltonian, which describes a simple physical picture that the holes with single occupation constraint introduced by doping move in the antiferromagnetic…
Quantum fluctuations of polarons on molecules
Chui-Lin Wang, Wen-Zheng Wang, Yu-Liang Liu +2
The dynamic Jahn-Teller splitting of the six equivalent polarons due to quantum fluctuations is studied in the framework of the Bogoliubov-de Gennes formalism. The tunneli…