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The One-dimensional Hubbard Model with Open Ends: Universal Divergent Contributions to the Magnetic Susceptibility

Bortz, Michael; Sirker, Jesko


The magnetic susceptibility of the one-dimensional Hubbard model with open boundary conditions at arbitrary filling is obtained from field theory at low temperatures and small magnetic fields, including leading and next-leading orders. Logarithmic contributions to the bulk part are identified as well as algebraic-logarithmic divergences in the boundary contribution. As a manifestation of spin-charge separation, the result for the boundary part at low energies turns out to be independent of...[Show more]

CollectionsANU Research Publications
Date published: 2006
Type: Journal article
Source: Journal of Physics A: Mathematical and General
DOI: 10.1088/0305-4470/39/23/002


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