Bounded solutions of neutral fermions with a screened Coulomb potential

dc.contributor.authorde Castro, A. S.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:27:35Z
dc.date.available2014-05-20T13:27:35Z
dc.date.issued2005-11-01
dc.description.abstractThe intrinsically relativistic problem of a fermion subject to a pseudoscalar screened Coulomb plus a uniform background potential in two-dimensional space-time is mapped into a Sturm-Liouville. This mapping gives rise to an effective Morse-like potential and exact bounded solutions are found. It is shown that the uniform background potential determinates the number of bound-state solutions. The behaviour of the eigenenergies as well as of the upper and lower components of the Dirac spinor corresponding to bounded solutions is discussed in detail and some unusual results are revealed. An apparent paradox concerning the uncertainty principle is solved by recurring to the concepts of effective mass and effective Compton wavelength. (c) 2005 Elsevier B.V. All rights reserved.en
dc.description.affiliationUNESP, Dept Quim & Fis, BR-12516410 Guaratingueta, SP, Brazil
dc.description.affiliationUnespUNESP, Dept Quim & Fis, BR-12516410 Guaratingueta, SP, Brazil
dc.format.extent56-70
dc.identifierhttp://dx.doi.org/10.1016/j.aop.2005.05.003
dc.identifier.citationAnnals of Physics. San Diego: Academic Press Inc. Elsevier B.V., v. 320, n. 1, p. 56-70, 2005.
dc.identifier.doi10.1016/j.aop.2005.05.003
dc.identifier.issn0003-4916
dc.identifier.lattes5811700083195480
dc.identifier.urihttp://hdl.handle.net/11449/9121
dc.identifier.wosWOS:000233307900003
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofAnnals of Physics
dc.relation.ispartofjcr2.367
dc.relation.ispartofsjr0,987
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectDirac equationpt
dc.subjectpseudoscalar potentialpt
dc.subjecteffective potentialpt
dc.titleBounded solutions of neutral fermions with a screened Coulomb potentialen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes5811700083195480[1]
unesp.author.orcid0000-0001-8802-8806[1]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Guaratinguetápt

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