Boundary susceptibilities of the Hubbard model in open chains
Hitoshi Asakawa; Masuo Suzuki; Hitoshi Asakawa; Department of Physics, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113, Japan; Masuo Suzuki; Department of Physics, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113, Japan
Журнал:
Journal of Physics A: Mathematical and General
Дата:
1996-12-21
Аннотация:
Boundary contributions to the magnetization and the electron density are evaluated analytically, near the half-filling and non-magnetic region. Boundary susceptibilities in the spin and the charge sectors are also calculated. The boundary magnetization approaches zero logarithmically as the magnetic field goes to zero. The boundary charge susceptibility diverges like the bulk compressibility when the filling goes to unity.
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