98 citations · 987 across the 45 of their papers we have counts for
12 papers · 1 filter
Spin-orbital gapped phase with least symmetry breaking in the one-dimensional symmetrically coupled spin-orbital model
Guang-Ming Zhang, Hu Hui, Lu Yu
To describe the spin-orbital energy gap formation in the one-dimensional symmetrically coupled spin-orbital model, we propose a simple mean field theory based on an SU(4) constrain…
Interplay of quantum magnetic and potential scattering around Zn or Ni impurity ions in superconducting cuprates
Guang-Ming Zhang, Hui Hu, Lu Yu
To describe the scattering of superconducting quasiparticles from non-magnetic (Zn) or magnetic (Ni) impurities in optimally doped high T cuprates, we propose an effective Ande…
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…
Universality class of non-Fermi liquid behavior in mixed valence systems
Guang-Ming Zhang, Zhao-Bin Su, Lu Yu
A generalized Anderson single-impurity model with off-site Coulomb interactions is derived from the extended three-band Hubbard model, originally proposed to describe the physics o…
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…