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DC Field | Value | Language |
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dc.contributor.author | Doretto, R. L. | - |
dc.contributor.author | Smith, C. Morais | - |
dc.contributor.author | Caldeira, A. O. | - |
dc.date.accessioned | 2013-09-30T19:02:14Z | - |
dc.date.accessioned | 2014-05-20T14:13:44Z | - |
dc.date.available | 2013-09-30T19:02:14Z | - |
dc.date.available | 2014-05-20T14:13:44Z | - |
dc.date.issued | 2012-07-26 | - |
dc.identifier | http://dx.doi.org/10.1103/PhysRevB.86.035326 | - |
dc.identifier.citation | Physical Review B. College Pk: Amer Physical Soc, v. 86, n. 3, p. 17, 2012. | - |
dc.identifier.issn | 1098-0121 | - |
dc.identifier.uri | http://hdl.handle.net/11449/24652 | - |
dc.description.abstract | We study the bilayer quantum Hall system at total filling factor nu(T) = 1 within a bosonization formalism which allows us to approximately treat the magnetic exciton as a boson. We show that in the region where the distance between the two layers is comparable to the magnetic length, the ground state of the system can be seen as a finite-momentum condensate of magnetic excitons provided that the excitation spectrum is gapped. We analyze the stability of such a phase within the Bogoliubov approximation first assuming that only one momentum Q is macroscopically occupied and later we consider the same situation for two modes +/- Q. We find strong evidences that a first-order quantum phase transition at small interlayer separation takes place from a zero-momentum condensate phase, which corresponds to Halperin 111 state, to a finite-momentum condensate of magnetic excitons. | en |
dc.description.sponsorship | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | - |
dc.description.sponsorship | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) | - |
dc.description.sponsorship | Netherlands Organization for Scientific Research (NWO) | - |
dc.format.extent | 17 | - |
dc.language.iso | eng | - |
dc.publisher | Amer Physical Soc | - |
dc.source | Web of Science | - |
dc.title | Finite-momentum condensate of magnetic excitons in a bilayer quantum Hall system | en |
dc.type | outro | - |
dc.contributor.institution | Universidade Estadual Paulista (UNESP) | - |
dc.contributor.institution | Univ Utrecht | - |
dc.contributor.institution | Universidade Estadual de Campinas (UNICAMP) | - |
dc.description.affiliation | Univ Estadual Paulista, Inst Fis Teor, BR-01140070 São Paulo, Brazil | - |
dc.description.affiliation | Univ Utrecht, Inst Theoret Phys, NL-3584 CE Utrecht, Netherlands | - |
dc.description.affiliation | Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazil | - |
dc.description.affiliationUnesp | Univ Estadual Paulista, Inst Fis Teor, BR-01140070 São Paulo, Brazil | - |
dc.description.sponsorshipId | FAPESP: 10/00479-6 | - |
dc.description.sponsorshipId | FAPESP: 07/57630-5 | - |
dc.description.sponsorshipId | CNPq: 303073/2010-1 | - |
dc.identifier.doi | 10.1103/PhysRevB.86.035326 | - |
dc.identifier.wos | WOS:000306924000003 | - |
dc.rights.accessRights | Acesso restrito | - |
dc.identifier.file | WOS000306924000003.pdf | - |
dc.relation.ispartof | Physical Review B | - |
Appears in Collections: | Artigos, TCCs, Teses e Dissertações da Unesp |
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