Comments on spin operators and spin-polarization states of 2+1 fermions
dc.contributor.author | Gavrilov, S. P. | |
dc.contributor.author | Gitman, D. M. | |
dc.contributor.author | Tomazelli, J. L. | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.contributor.institution | Universidade de São Paulo (USP) | |
dc.date.accessioned | 2014-05-20T15:26:20Z | |
dc.date.available | 2014-05-20T15:26:20Z | |
dc.date.issued | 2005-02-01 | |
dc.description.abstract | In this brief article we discuss spin-polarization operators and spin-polarization states of 2 + 1 massive Dirac fermions and find a convenient representation by the help of 4-spinors for their description. We stress that in particular the use of such a representation allows us to introduce the conserved covariant spin operator in the 2 + 1 field theory. Another advantage of this representation is related to the pseudoclassical limit of the theory. Indeed, quantization of the pseudoclassical model of a spinning particle in 2 + 1 dimensions leads to the 4-spinor representation as the adequate realization of the operator algebra, where the corresponding operator of a first-class constraint, which cannot be gauged out by imposing the gauge condition, is just the covariant operator previously introduced in the quantum theory. | en |
dc.description.affiliation | UNESP, Dept Quim & Fis, São Paulo, Brazil | |
dc.description.affiliation | Univ São Paulo, Inst Fis, BR-05315970 São Paulo, Brazil | |
dc.description.affiliationUnesp | UNESP, Dept Quim & Fis, São Paulo, Brazil | |
dc.format.extent | 245-248 | |
dc.identifier | http://dx.doi.org/10.1140/epjc/s2004-02026-9 | |
dc.identifier.citation | European Physical Journal C. New York: Springer, v. 39, n. 2, p. 245-248, 2005. | |
dc.identifier.doi | 10.1140/epjc/s2004-02026-9 | |
dc.identifier.issn | 1434-6044 | |
dc.identifier.uri | http://hdl.handle.net/11449/36509 | |
dc.identifier.wos | WOS:000226628700012 | |
dc.language.iso | eng | |
dc.publisher | Springer | |
dc.relation.ispartof | European Physical Journal C | |
dc.relation.ispartofjcr | 5.172 | |
dc.relation.ispartofsjr | 2,022 | |
dc.rights.accessRights | Acesso restrito | |
dc.source | Web of Science | |
dc.title | Comments on spin operators and spin-polarization states of 2+1 fermions | en |
dc.type | Artigo | |
dcterms.license | http://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0 | |
dcterms.rightsHolder | Springer |
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