Anisotropic exchange interaction induced by a single photon in semiconductor microcavities
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Campo DC | Valor | Idioma |
---|---|---|
dc.contributor | Grupo de Nanofísica | es |
dc.contributor | Física de la Materia Condensada | es |
dc.contributor | Materiales Avanzados | es |
dc.contributor.author | Chiappe, Guillermo | - |
dc.contributor.author | Fernández-Rossier, Joaquín | - |
dc.contributor.author | Louis, Enrique | - |
dc.contributor.author | Anda, Enrique V. | - |
dc.contributor.other | Universidad de Alicante. Departamento de Física Aplicada | es |
dc.date.accessioned | 2012-11-21T07:44:00Z | - |
dc.date.available | 2012-11-21T07:44:00Z | - |
dc.date.issued | 2005-12-08 | - |
dc.identifier.citation | CHIAPPE, G., et al. “Anisotropic exchange interaction induced by a single photon in semiconductor microcavities”. Physical Review B. Vol. 72, No. 24 (2005). ISSN 1098-0121, pp. 245311-1/5 | es |
dc.identifier.issn | 1098-0121 (Print) | - |
dc.identifier.issn | 1550-235X (Online) | - |
dc.identifier.uri | http://hdl.handle.net/10045/25223 | - |
dc.description.abstract | We investigate coupling of localized spins in a semiconductor quantum dot embedded in a microcavity. The lowest cavity mode and the quantum dot exciton are coupled and close in energy, forming a polariton. The fermions forming the exciton interact with localized spins via exchange. Exact diagonalization of a Hamiltonian in which photons, spins, and excitons are treated quantum mechanically shows that a single polariton induces a sizable indirect anisotropic exchange interaction between spins. At sufficiently low temperatures strong ferromagnetic correlations show up without an appreciable increase in exciton population. In the case of a (Cd,Mn)Te quantum dot, Mn-Mn ferromagnetic coupling is still significant at 1 K: spin-spin correlation around 3 for exciton occupation smaller than 0.3. We find that the interaction mediated by photon-polaritons is 10 times stronger than the one induced by a classical field for equal Rabi splitting. | es |
dc.description.sponsorship | G.C. and J.F.R. acknowledge financial support from the Ramón y Cajal Program (MCyT, Spain) and from CAV, Grant No. GV05/152. Partial financial support by the Spanish MCYT (Grant Nos. MAT2002-04429-C03, MAT2003-08109-C02-01, and FIS200402356), the Brazilian agencies FAPERJ, CAPES, and CNPq, and the Argentinian UBACYT and CONICET. | es |
dc.language | eng | es |
dc.publisher | American Physical Society | es |
dc.rights | © 2005 The American Physical Society | es |
dc.subject | Localized spins | es |
dc.subject | Semiconductor quantum dot | es |
dc.subject | Microcavity | es |
dc.subject | Single photon | es |
dc.subject | Anisotropic exchange interaction | es |
dc.subject.other | Física de la Materia Condensada | es |
dc.subject.other | Física Aplicada | es |
dc.title | Anisotropic exchange interaction induced by a single photon in semiconductor microcavities | es |
dc.type | info:eu-repo/semantics/article | es |
dc.peerreviewed | si | es |
dc.identifier.doi | 10.1103/PhysRevB.72.245311 | - |
dc.relation.publisherversion | http://dx.doi.org/10.1103/PhysRevB.72.245311 | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
Aparece en las colecciones: | INV - Grupo de Nanofísica - Artículos de Revistas INV - LMA - Artículos de Revistas INV - Física de la Materia Condensada - Artículos de Revistas |
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