Entanglement and quantum phase transition in the extended Hubbard model

SJ Gu, SS Deng, YQ Li, HQ Lin - Physical review letters, 2004 - APS
We study quantum entanglement in a one-dimensional correlated fermionic system. Our
results show, for the first time, that entanglement can be used to identify quantum phase …

SU (4) theory for spin systems with orbital degeneracy

YQ Li, M Ma, DN Shi, FC Zhang - Physical review letters, 1998 - APS
The isotropic limit of spin systems with orbital degeneracy has global SU (4) symmetry. On
many 2D lattices, the ground state does not possess long-range order, which may explain the …

Entanglement, quantum phase transition, and scaling in the chain

SJ Gu, HQ Lin, YQ Li - Physical Review A, 2003 - APS
Motivated by recent development in quantum entanglement, we study relations among
concurrence C, SU q (2) algebra, quantum phase transition and correlation length at the zero …

RCS reduction of ridged waveguide slot antenna array using EBG radar absorbing material

YQ Li, H Zhang, YQ Fu, NC Yuan - IEEE Antennas and …, 2008 - ieeexplore.ieee.org
This letter investigates the application of EBG radar absorbing material (RAM) to asymmetric
ridged waveguide slot antenna array to reduce its backward RCS. The EBG RAM is based …

[HTML][HTML] Combinatorial strategies of radiotherapy and immunotherapy in nasopharyngeal carcinoma

ELL Yeo, YQ Li, KC Soo, JTS Wee… - Chinese clinical …, 2018 - cco.amegroups.org
Immunotherapy and radiation therapy (RT) have each demonstrated clinical success in the
treatment of nasopharyngeal carcinoma (NPC) when utilized independently. Several …

Quantum theory for mesoscopic electric circuits

YQ Li, B Chen - Physical Review B, 1996 - APS
A quantum theory for mesoscopic electric circuits in accord with the discreteness of electric
charges is proposed. On the basis of the theory, the Schrödinger equation for the quantum …

Prognostic model for stratification of radioresistant nasopharynx carcinoma to curative salvage radiotherapy

YQ Li, YM Tian, SH Tan, MZ Liu… - Journal of Clinical …, 2018 - ascopubs.org
Purpose To investigate for a prognostic index (PI) to personalize recommendations for
salvage intensity-modulated radiotherapy (IMRT) in patients with locally recurrent …

A mechanism to pin skyrmions in chiral magnets

YH Liu, YQ Li - Journal of Physics: Condensed Matter, 2013 - iopscience.iop.org
We propose a mechanism to pin skyrmions in chiral magnetic thin films by introducing local
maxima of magnetic exchange strength as pinning centers. The local maxima can be …

Design of circular/dual-frequency linear polarization antennas based on the anisotropic complementary split ring resonator

H Zhang, YQ Li, X Chen, YQ Fu… - IEEE transactions on …, 2009 - ieeexplore.ieee.org
A novel kind of circular polarization and dual-frequency linear polarization microstrip antennas
is proposed. The designs are based on the anisotropic property of the complementary …

SU (2)× U (1) unified theory for charge, orbit and spin currents

PQ Jin, YQ Li, FC Zhang - Journal of Physics A: Mathematical …, 2006 - iopscience.iop.org
Spin and charge currents in systems with Rashba or Dresselhaus spin–orbit couplings are
formulated in a unified version of four-dimensional SU (2)× U (1) gauge theory, with U (1) …