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9 papers · 1 filter
Staggered Currents in the Vortex Core
Jung Hoon Han, Qiang-Hua Wang, Dung-Hai Lee
We study the electronic structure of the vortex core in the cuprates using the U(1) slave-boson mean-field wavefunctions and their Gutzwiller projection. We conclude that there exi…
The Superfluid Density in the D-density-wave Scenario
Qiang-Hua Wang, Jung Hoon Han, Dung-Hai Lee
Recently Chakravarty, Laughlin, Morr and Nayak made an interesting proposal that the cuprate superconductors possess a hidden ``d-density wave'' order. We study the implication of…
Proximity to a Nearly Superconducting Quantum Critical Liquid
Qiang-Hua Wang, A. V. Balatsky
The coupling between superconductors and a quantum critical liquid that is nearly superconducting provides natural interpretation for the Josephson effect over unexpectedly long ju…
Localization-Delocalization Transition of Electron States in a Disordered Quantum Small World Network
Chen-Ping Zhu, Shi-Jie Xiong
We investigate the localization behavior of electrons in a random lattice which is constructed from a quasi-one-dimensional chain with large coordinate number and rewired bonds…
Modeling study on the validity of a possibly simplified representation of proteins
Jun Wang, Wei Wang
The folding characteristics of sequences reduced with a possibly simplified representation of five types of residues are shown to be similar to their original ones with the natural…
Antiferromagnetism, Stripes, and Superconductivity in the t-J Model with Coulomb Interaction
Jung Hoon Han, Qiang-Hua Wang, Dung-Hai Lee
We study mean-field phases of the t-J model with long-range Coulomb interaction. In the order of increasing doping density we find a classical antiferromagnet, charge and spin stri…