Static potential in QED3 with nonminimal coupling
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1103/PhysRevD.70.065021 http://hdl.handle.net/11449/227961 |
Resumo: | Here we study the effect of the nonminimal coupling jμε μνα∂νAα on the static potential in multiflavor QED3. Both cases of four and two components fermions are studied separately at leading order in the 1/N expansion. Although a nonlocal Chern-Simons term appears, in the four components case the photon is still massless leading to a confining logarithmic potential similar to the classical one. In the two components case, as expected, the parity breaking fermion mass term generates a traditional Chern-Simons term which makes the photon massive and we have a screening potential which vanishes at large intercharge distance. The extra nonminimal couplings have no important influence on the static potential at large intercharge distances. However, interesting effects show up at finite distances. In particular, for strong enough nonminimal coupling we may have a new massive pole in the photon propagator, while in the opposite limit there may be no poles at all in the irreducible case. We also found that, in general, the nonminimal couplings lead to a finite range repulsive force between charges of opposite signs. |
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Repositório Institucional da UNESP |
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Static potential in QED3 with nonminimal couplingHere we study the effect of the nonminimal coupling jμε μνα∂νAα on the static potential in multiflavor QED3. Both cases of four and two components fermions are studied separately at leading order in the 1/N expansion. Although a nonlocal Chern-Simons term appears, in the four components case the photon is still massless leading to a confining logarithmic potential similar to the classical one. In the two components case, as expected, the parity breaking fermion mass term generates a traditional Chern-Simons term which makes the photon massive and we have a screening potential which vanishes at large intercharge distance. The extra nonminimal couplings have no important influence on the static potential at large intercharge distances. However, interesting effects show up at finite distances. In particular, for strong enough nonminimal coupling we may have a new massive pole in the photon propagator, while in the opposite limit there may be no poles at all in the irreducible case. We also found that, in general, the nonminimal couplings lead to a finite range repulsive force between charges of opposite signs.UNESP Campus de Guaratinguetá DFQ, Ave. Dr. Ariberto Pereira Cunha, 333, CEP 12516-410, Guaratingueta, S.P.UNESP Campus de Guaratinguetá DFQ, Ave. Dr. Ariberto Pereira Cunha, 333, CEP 12516-410, Guaratingueta, S.P.Universidade Estadual Paulista (UNESP)Dalmazi, D. [UNESP]2022-04-29T07:25:58Z2022-04-29T07:25:58Z2004-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1103/PhysRevD.70.065021Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 70, n. 6, 2004.0556-2821http://hdl.handle.net/11449/22796110.1103/PhysRevD.70.0650212-s2.0-84927713247Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review D - Particles, Fields, Gravitation and Cosmologyinfo:eu-repo/semantics/openAccess2022-04-29T07:25:58Zoai:repositorio.unesp.br:11449/227961Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-29T07:25:58Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Static potential in QED3 with nonminimal coupling |
title |
Static potential in QED3 with nonminimal coupling |
spellingShingle |
Static potential in QED3 with nonminimal coupling Dalmazi, D. [UNESP] |
title_short |
Static potential in QED3 with nonminimal coupling |
title_full |
Static potential in QED3 with nonminimal coupling |
title_fullStr |
Static potential in QED3 with nonminimal coupling |
title_full_unstemmed |
Static potential in QED3 with nonminimal coupling |
title_sort |
Static potential in QED3 with nonminimal coupling |
author |
Dalmazi, D. [UNESP] |
author_facet |
Dalmazi, D. [UNESP] |
author_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Dalmazi, D. [UNESP] |
description |
Here we study the effect of the nonminimal coupling jμε μνα∂νAα on the static potential in multiflavor QED3. Both cases of four and two components fermions are studied separately at leading order in the 1/N expansion. Although a nonlocal Chern-Simons term appears, in the four components case the photon is still massless leading to a confining logarithmic potential similar to the classical one. In the two components case, as expected, the parity breaking fermion mass term generates a traditional Chern-Simons term which makes the photon massive and we have a screening potential which vanishes at large intercharge distance. The extra nonminimal couplings have no important influence on the static potential at large intercharge distances. However, interesting effects show up at finite distances. In particular, for strong enough nonminimal coupling we may have a new massive pole in the photon propagator, while in the opposite limit there may be no poles at all in the irreducible case. We also found that, in general, the nonminimal couplings lead to a finite range repulsive force between charges of opposite signs. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-01-01 2022-04-29T07:25:58Z 2022-04-29T07:25:58Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1103/PhysRevD.70.065021 Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 70, n. 6, 2004. 0556-2821 http://hdl.handle.net/11449/227961 10.1103/PhysRevD.70.065021 2-s2.0-84927713247 |
url |
http://dx.doi.org/10.1103/PhysRevD.70.065021 http://hdl.handle.net/11449/227961 |
identifier_str_mv |
Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 70, n. 6, 2004. 0556-2821 10.1103/PhysRevD.70.065021 2-s2.0-84927713247 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Physical Review D - Particles, Fields, Gravitation and Cosmology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799965221699190784 |