Navegar

Colección

Datos Estadísticas

Artículo

La versión final de este artículo es de uso interno. El editor solo permite incluir en el repositorio el artículo en su versión post-print. Por favor, si usted la posee enviela a
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

The localization of two interacting electrons in a coupled-quantum-dots semi-conductor structure is demonstrated through numerical calculations of the time evolution of the two-electron wave function including the Coulomb interaction between the electrons. The transition from the ground state to a localized state is induced by an external, time-dependent, uniform electric field. It is found that while an appropriate constant field can localize both electrons in one of the wells, oscillatory fields can induce roughly equal probabilities for both electrons to be localized in either well, generating an interesting type of localized and entangled state. We also show that shifting the field suddenly to an appropriate constant value can maintain in time both types of localization.

Registro:

Documento: Artículo
Título:Localization and entanglement of two interacting electrons in a quantum-dot molecule
Autor:Tamborenea, P.I.; Metiu, H.
Filiación:Ctr. for Quantized Electron. Struct., Department of Chemistry, University of California, Santa Barbara, CA 93106-9510, United States
Departamento de Física, FCEN, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
Año:2001
Volumen:53
Número:6
Página de inicio:776
Página de fin:782
DOI: http://dx.doi.org/10.1209/epl/i2001-00219-7
Título revista:Europhysics Letters
Título revista abreviado:Europhys. Lett.
ISSN:02955075
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02955075_v53_n6_p776_Tamborenea

Referencias:

  • Grossmann, F., Dittrich, T., Jung, P., Hänggi, P., (1991) Phys. Rev. Lett., 67, p. 516
  • Bavli, R., Metiu, H., (1992) Phys. Rev. Lett., 69, p. 1986
  • note; Steane, A., (1998) Rep. Prog. Phys., 61, p. 117
  • Loss, D., Sukhorukov, E.V., (1999), LANL preprint, cond-mat/9907129v2, 15 July; Quiroga, L., Johnson, N.F., (1999) Phys. Rev. Lett., 83, p. 2270
  • Imamoglu, A., Awschalom, D.D., Burkard, G., Divincenzo, D.P., Loss, D., Sherwin, M., Small, A., (1999) Phys. Rev. Lett., 83, p. 4204
  • Brendel, J., Gisin, N., Tittel, W., Zbinden, H., (1999) Phys. Rev. Lett., 82, p. 2594
  • Plenio, M.B., Vedral, V., (1998) Contemp. Phys., 39, p. 431
  • Grossmann, F., Hänggi, P., (1992) Europhys. Lett., 18, p. 571
  • Bavli, R., Metiu, H., (1993) Phys. Rev. A, 47, p. 3299
  • Zhang, P., Zhao, X.-G., (2000) Phys. Lett. A, 271, p. 419
  • Tokura, Y., Austing, D.G., Tarucha, S., (1999) J. Phys. Condens. Matter, 11, p. 6023
  • Partoens, B., Matulis, A., Peeters, F.M., (1999) Phys. Rev. B, 59, p. 1617
  • Austing, D.G., Honda, T., Muraki, K., Tokura, Y., Tarucha, S., (1998) Physica B, 249, p. 206. , and references therein
  • Tamborenea, P.I., Metiu, H., (1999) Phys. Rev. Lett., 83, p. 3912
  • Oosterkamp, T.H., Fujisawa, T., Van Der Wlel, W.G., (1998) Nature, 395, p. 873
  • Schedelbeck, G., Wegscheider, W., Bichler, M.M., (1997) Science, 278, p. 1792
  • Livermore, C., Crouch, C.H., Westervelt, R.M., Campman, K.L., Gossard, A.C., (1996) Science, 274, p. 1332
  • Kouwenhoven, L., (1995) Science, 268, p. 1440. , See also references in these publications
  • Ashcroft, N.W., Mermin, N.D., (1976) Solid State Physics, , Saunders W. Company B., Philadelphia, problem 32.2
  • Szabo, A., Ostlund, N.S., (1996) Modern Quantum Chemistry, , Dover Publications, Inc., Mineola, New York

Citas:

---------- APA ----------
Tamborenea, P.I. & Metiu, H. (2001) . Localization and entanglement of two interacting electrons in a quantum-dot molecule. Europhysics Letters, 53(6), 776-782.
http://dx.doi.org/10.1209/epl/i2001-00219-7
---------- CHICAGO ----------
Tamborenea, P.I., Metiu, H. "Localization and entanglement of two interacting electrons in a quantum-dot molecule" . Europhysics Letters 53, no. 6 (2001) : 776-782.
http://dx.doi.org/10.1209/epl/i2001-00219-7
---------- MLA ----------
Tamborenea, P.I., Metiu, H. "Localization and entanglement of two interacting electrons in a quantum-dot molecule" . Europhysics Letters, vol. 53, no. 6, 2001, pp. 776-782.
http://dx.doi.org/10.1209/epl/i2001-00219-7
---------- VANCOUVER ----------
Tamborenea, P.I., Metiu, H. Localization and entanglement of two interacting electrons in a quantum-dot molecule. Europhys. Lett. 2001;53(6):776-782.
http://dx.doi.org/10.1209/epl/i2001-00219-7