Navegar

Colección

Datos Estadísticas

Artículo

El editor solo permite decargar el artículo en su versión post-print desde el repositorio. Por favor, si usted posee dicha versión, enviela a
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

We investigate coupling of localized spins in a semiconductor quantum dot embedded in a microcavity with a finite quality factor. The lowest cavity mode and the quantum dot exciton are coupled forming a polariton, whereas excitons interact with localized spins via exchange. The finite quality of the cavity Q is incorporated in the model Hamiltonian by adding an imaginary part to the photon frequency. The Hamiltonian, which treats photons, spins and excitons quantum mechanically, is solved exactly. Results for a single polariton clearly demonstrate the existence of a resonance, sharper as the temperature decreases, that shows up as an abrupt change to and fro between ferromagnetic and antiferromagnetic indirect anisotropic exchange interaction between localized spins. The origin of this spin-switching finite-quality-factor effect is discussed in detail remarking on its dependence on model parameters, i.e., light-matter coupling, exchange interaction between impurities, detuning and quality factor. For parameters corresponding to the case of a (Cd,Mn)Te quantum dot, the resonance shows up for Q140 and detuning around 10 meV. In addition, we show that, for such a quantum dot, and the best cavities actually available (quality factors better than 200) the exchange interaction is scarcely affected. © 2006 The American Physical Society.

Registro:

Documento: Artículo
Título:Switching the sign of photon-induced exchange interactions in semiconductor microcavities with finite quality factors
Autor:Chiappe, G.; Louis, E.; Anda, E.V.
Filiación:Departamento de Física Aplicada, Instituto Universitario de Materiales, Universidad de Alicante, Alicante 03690, Spain
Departamento de Física J.J. Giambiagi, Facultad de Ciencias Exactas, Ciudad Universitaria, 1428 Buenos Aires, Argentina
Departamento de Física, Pontificia Universidade Católica Do Rio de Janeiro (PUC-Rio), 22452-970, Caixa Postal, 38071 Rio de Janeiro, Brazil
Año:2006
Volumen:74
Número:15
DOI: http://dx.doi.org/10.1103/PhysRevB.74.155320
Título revista:Physical Review B - Condensed Matter and Materials Physics
Título revista abreviado:Phys. Rev. B Condens. Matter Mater. Phys.
ISSN:10980121
CODEN:PRBMD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10980121_v74_n15_p_Chiappe

Referencias:

  • (2002) Semiconductor Spintronics and Quantum Computation, , edited by D. D. Awschalom, D. Loss, and N. Samarth (Springer, New York
  • Loss, D., Divincenzo, D.P., (1998) Phys. Rev. a, 57, p. 120. , PLRAAN 1050-2947 10.1103/PhysRevA.57.120
  • Imamoglu, A., Awschalom, D.D., Burkard, G., Divincenzo, D.P., Loss, D., Sherwin, M., Small, A., (1999) Phys. Rev. Lett., 83, p. 4204. , PRLTAO 0031-9007 10.1103/PhysRevLett.83.4204
  • Piermarocchi, C., Chen, P., Sham, L.J., Steel, D.G., (2002) Phys. Rev. Lett., 89, p. 167402. , PRLTAO 0031-9007 10.1103/PhysRevLett.89.167402
  • Bao, J.M., Bragas, A.V., Furdyna, J.K., Merlin, R., (2003) Nat. Mater., 2, p. 175. , NMAACR 1476-1122 10.1038/nmat839
  • Bao, J., cond-mat/0406672 (to be published); Calarco, T., Datta, A., Fedichev, P., Pazy, E., Zoller, P., (2003) Phys. Rev. a, 68, p. 012310. , PLRAAN 1050-2947 10.1103/PhysRevA.68.012310
  • Fernández-Rossier, J., Piermarocchi, C., Chen, P., MacDonald, A.H., Sham, L.J., (2004) Phys. Rev. Lett., 93, p. 127201. , PRLTAO 0031-9007 10.1103/PhysRevLett.93.127201
  • Ohno, H., Chiba, D., Matsukura, F., Omiya, T., Abe, E., Dietl, T., Ohno, Y., Ohtani, K., (2000) Nature (London), 408, p. 944. , NATUAS 0028-0836 10.1038/35050040
  • Chiba, D., Yamanouchi, M., Matsukura, F., Ohno, H., (2003) Science, 301, p. 943. , SCIEAS 0036-8075 10.1126/science.1086608
  • MacKowski, S., Gurun, T., Nguyen, T.A., Jackson, H.E., Smith, L.M., Karczewski, G., Kossut, J., (2004) Appl. Phys. Lett., 84, p. 3337. , APPLAB 0003-6951 10.1063/1.1723694
  • Solomon, G.S., Pelton, M., Yamamoto, Y., (2001) Phys. Rev. Lett., 86, p. 3903. , PRLTAO 0031-9007 10.1103/PhysRevLett.86.3903
  • Barenco, A., Bennett, C.H., Cleve, R., Divincenzo, D.P., Margolus, N., Shor, P., Sleator, T., Weinfurter, H., (1995) Phys. Rev. a, 52, p. 3457. , PLRAAN 1050-2947 10.1103/PhysRevA.52.3457
  • Divincenzo, D.P., Bacon, D., Kempe, J., Burkard, G., Whaley, K.B., (2000) Nature (London), 408, p. 339. , NATUAS 0028-0836 10.1038/35042541
  • Piermarocchi, C., Quinteiro, G.F., (2004) Phys. Rev. B, 70, p. 235210. , PRBMDO 0163-1829 10.1103/PhysRevB.70.235210
  • Ramon, G., Lyanda-Geller, Y., Reinecke, T.L., Sham, L.J., (2005) Phys. Rev. B, 71, p. 121305. , PRBMDO 0163-1829 10.1103/PhysRevB.71.121305
  • Chiappe, G., Fernández-Rossier, J., Louis, E., Anda, E.V., (2005) Phys. Rev. B, 72, p. 245311. , PRBMDO 0163-1829 10.1103/PhysRevB.72.245311
  • Obert, M., Rennert, J., Forchel, A., Bacher, G., Andre, R., Dang, D.L.S., (2004) Appl. Phys. Lett., 84, p. 1435. , APPLAB 0003-6951 10.1063/1.1651646
  • Reithmaier, J.P., Sek, G., Loffler, A., Hofmann, C., Kuhn, S., Reitzenstein, S., Keldysh, L.V., Forchel, A., (2004) Nature (London), 432, p. 197. , NATUAS 0028-0836 10.1038/nature02969
  • Maksimov, A.A., Bacher, G., McDonald, A., Kulakovskii, V.D., Forchel, A., Becker, C.R., Landwehr, G., Molenkamp, L., (2000) Phys. Rev. B, 62, p. 7767. , PRBMDO 0163-1829 10.1103/PhysRevB.62.R7767
  • Bacher, G., Maksimov, A.A., Schomig, H., Kulakovskii, V.D., Welsch, M.K., Forchel, A., Dorozhkin, P.S., Furdyna, J.K., (2002) Phys. Rev. Lett., 89, p. 127201. , PRLTAO 0031-9007 10.1103/PhysRevLett.89.127201
  • Besombes, L., Leger, Y., Maingault, L., Ferrand, D., Mariette, H., Cibert, J., (2004) Phys. Rev. Lett., 93, p. 207403. , PRLTAO 0031-9007 10.1103/PhysRevLett.93.207403
  • Finlayson, C.E., Vijaya Prakash, G., Baumberg, J.J., (2005) Appl. Phys. Lett., 86, p. 041110. , APPLAB 0003-6951 10.1063/1.1850189
  • Bodolato, A., Hennessy, K., Atature, M., Dreiser, J., Hu, E., Petroff, P.M., Imamoglu, A., (2005) Science, 308, p. 1158. , SCIEAS 0036-8075 10.1126/science.1109815
  • Kiraz, A., Michler, P., Becher, C., Gayral, B., Imamoglu, A., Zhang, L., Hu, E., Petroff, P.M., (2001) Appl. Phys. Lett., 78, p. 3932. , APPLAB 0003-6951 10.1063/1.1379987
  • Barenco, A., Dupertuis, M.A., (1995) Phys. Rev. B, 52, p. 2766. , PRBMDO 0163-1829 10.1103/PhysRevB.52.2766
  • Perea, J.I., Tejedor, C., (2005) Phys. Rev. B, 72, p. 035303. , PRBMDO 0163-1829 10.1103/PhysRevB.72.035303
  • Gerry, C.C., Knight, P.L., (2005) Introduction to Quantum Optics, , Cambridge University Press, Cambridge
  • Walecka, J.D., (2004) Theoretical Nuclear and Subnuclear Physics, , World Scientific, Singapore
  • (1984) Optical Orientation, , edited by F. Meier and B. P. Zakharchenya (North-Holland, New York

Citas:

---------- APA ----------
Chiappe, G., Louis, E. & Anda, E.V. (2006) . Switching the sign of photon-induced exchange interactions in semiconductor microcavities with finite quality factors. Physical Review B - Condensed Matter and Materials Physics, 74(15).
http://dx.doi.org/10.1103/PhysRevB.74.155320
---------- CHICAGO ----------
Chiappe, G., Louis, E., Anda, E.V. "Switching the sign of photon-induced exchange interactions in semiconductor microcavities with finite quality factors" . Physical Review B - Condensed Matter and Materials Physics 74, no. 15 (2006).
http://dx.doi.org/10.1103/PhysRevB.74.155320
---------- MLA ----------
Chiappe, G., Louis, E., Anda, E.V. "Switching the sign of photon-induced exchange interactions in semiconductor microcavities with finite quality factors" . Physical Review B - Condensed Matter and Materials Physics, vol. 74, no. 15, 2006.
http://dx.doi.org/10.1103/PhysRevB.74.155320
---------- VANCOUVER ----------
Chiappe, G., Louis, E., Anda, E.V. Switching the sign of photon-induced exchange interactions in semiconductor microcavities with finite quality factors. Phys. Rev. B Condens. Matter Mater. Phys. 2006;74(15).
http://dx.doi.org/10.1103/PhysRevB.74.155320