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공공누리This item is licensed Korea Open Government License

dc.contributor.author
박광렬
dc.contributor.author
안설아
dc.contributor.author
석성호
dc.date.accessioned
2019-08-28T07:40:48Z
dc.date.available
2019-08-28T07:40:48Z
dc.date.issued
2009-01-15
dc.identifier.issn
0374-4884
dc.identifier.uri
https://repository.kisti.re.kr/handle/10580/13811
dc.identifier.uri
http://www.ndsl.kr/ndsl/search/detail/article/articleSearchResultDetail.do?cn=NART48641778
dc.description.abstract
Applying the functional Schroedinger picture to the Holstein-Primakoff boson theory, we obtain a dispersion energy relation for an antiferromagnetic spin polaron or magnon in two-dimensional systems of strongly correlated electrons. We show that our magnon ground-state wave function is equivalent to that of a retraceable path approximation by Reiter in the long-wavelength limit. Further, we demonstrate that the derived dispersion relation of a quasiparticle leads to the self-consistent Born approximation of the Green's function approach only in the large Heisenberg coupling J limit, showing that this new approach is general enough to contain more physical information than the Green's function approach in dealing with the antiferromagnetic spin polaron of interest.
dc.language
eng
dc.relation.ispartofseries
Journal of the Korean Physical Society
dc.citation.endPage
162
dc.citation.number
1
dc.citation.startPage
157
dc.citation.volume
54
dc.subject.keyword
Functional Schroedinger picture theory
dc.subject.keyword
Holstein-Primakoff boson theory
dc.subject.keyword
Dispersion energy relation
dc.subject.keyword
Antiferromagnetic spin polaron
dc.subject.keyword
Two-dimensional systems of strongly correlated electrons
Appears in Collections:
7. KISTI 연구성과 > 학술지 발표논문
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