Properties of the Bound States on a Hexagonal Lattice
作者： M. Bak
DOI: 10.12693/APHYSPOLA.111.781
关键词: Hexagonal lattice 、 Electron 、 Condensed matter physics 、 k-nearest neighbors algorithm 、 Hubbard model 、 Phase diagram 、 Pairing 、 Physics 、 Lattice (order) 、 Bound state
摘要: Two electrons on a lattice pose an interesting problem which can be solved exactly. When the effective interactions are strong enough, bound states formed. The properties of such pairs in extended Hubbard model examined for both signs nearest neighbor hopping integral t. stabilization s∗-wave pairing is found t 0. Phase diagrams existence none, one or two solutions calculated.
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