著者
Morita Y. Hatsugai Y. Otsuka Y.
出版者
American Physical Society
雑誌
Physical review B (ISSN:10980121)
巻号頁・発行日
vol.70, no.24, pp.245101, 2004-12
被引用文献数
2 1

We study quasiparticle structure in the vicinity of the Heisenberg model. At first, we focus on the model in one dimension and show how solitonic quasiparticles (and their bound states) emerge. Further we discuss its anlaog in higher dimensions. Related to this subject, numerical data are presented and a discussion is given for the quasiparticles in the two-dimensional Hubbard model at half filling on a triangular-type lattice.

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