Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2001-11-07
Physics
Condensed Matter
Strongly Correlated Electrons
11 pages, 5 figures in LateX and eps files
Scientific paper
In studying the different Kondo problems it is generally assumed that
breaking the electron-hole symmetry does not affect the perturbative infrared
divergencies. It is shown here that, in contrast, breaking that symmetry may in
some cases lead to observable modifications while in other cases it does not.
Újsághy Orsolya
Vladar Karoly
Zarand Gergely
Zawadowski Alfred
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