Phase separation in the two-dimensional Hubbard model

被引:23
|
作者
Su, G
机构
[1] Institut für Theoretische Physik, Universität zu Köln, D-50937 Köln
关键词
D O I
10.1103/PhysRevB.54.R8281
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
By making use of known exact results and symmetry properties for the one-band Hubbard model, we show in a somewhat exact manner that there is no phase separation on a square lattice at arbitrary fillings at finite temperature for both attractive and repulsive on-site Coulomb interaction. This' result is consistent with the quantum Monto Carlo calculation.
引用
收藏
页码:R8281 / R8284
页数:4
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