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Superconductivity and Topological Numbers in the Hubbard Chain with Bond-Charge Interaction

✍ Scribed by A.A. Aligia; K. Hallberg; C.D. Batista; G. Ortiz


Book ID
110421840
Publisher
Springer US
Year
1999
Tongue
English
Weight
294 KB
Volume
117
Category
Article
ISSN
0022-2291

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✍ S. Yunoki; K. Tsutsui; Y. Ohta; S. Maekawa πŸ“‚ Article πŸ“… 1994 πŸ› Elsevier Science 🌐 English βš– 203 KB πŸ‘ 1 views

Effects of long-range Coulomb interaction in one-dimensional electron systems are studied. By using a quantum Monte Carlo method, we obtain that the zero-frequency wave-number dependent charge susceptibility at quarterfilling shows both 2kF and 4kF singularities, kF being the Fermi wave munber, in c