Exact Electron-Pairing Ground States of Tight-Binding Models with Local Attractive Interactions (Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
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概要
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We present a class of exactly solvable models of correlated electrons. The models are defined in any dimension d and consist of electron-hopping terms and local attractive interactions between electrons. For each even number of electrons less than or equal to 1 / (d + 1) -filling, we find the exact ground state in which all electrons form pairs of a certain type, and thus the models exhibit an electron-pair condensation.
- 社団法人日本物理学会の論文
- 2004-05-15
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- Exact Electron-Pairing Ground States of Tight-Binding Models with Local Attractive Interactions (Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)