Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
1997-03-22
Fizika 21S3:231,1989
Physics
Condensed Matter
Strongly Correlated Electrons
LaTeX 2.09, 3 pages, no figures. This paper was published in 1989, but cond-mat/9610040 recently brought the subject of the Ho
Scientific paper
General topologically invariant microscopical expressions for quantum numbers of particle-like solitons ("skyrmions") are derived for a class of (2+1)D models. Skyrmions are either half-integer spin fermions with odd electric charge or integer spin bosons with even charge. So they cannot be Anderson's spinons or holons. General results are exemplified by a square lattice model reminiscenting high-Tc models.
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