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 la política de Acceso Abierto del editor

Abstract:

We have studied the relaxation and dephasing processes in a superconducting quantum point contact induced by the interaction with an electromagnetic environment. Based on a density matrix approach we obtain the rates for the dissipative dynamics as function of the transmission, the phase difference on the contact, and the external impedance. Our calculation allows us to determine the appropriate range of parameters for the observation of coherent oscillations in the current through the contact.

Registro:

Documento: Artículo
Título:Controlled dephasing of Andreev states in superconducting quantum point contacts
Autor:Despósito, M.A.; Levy Yeyati, A.
Filiación:Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
Departamento de Física de la Materia Condensada C-V. Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, E-28049, Spain
Palabras clave:article; calculation; conductor; density; dynamics; electromagnetic field; quantum mechanics; superconductor
Año:2001
Volumen:64
Número:14
Página de inicio:1405111
Página de fin:1405114
Título revista:Physical Review B - Condensed Matter and Materials Physics
Título revista abreviado:Phys. Rev. B Condens. Matter Mater. Phys.
ISSN:01631829
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01631829_v64_n14_p1405111_Desposito

Referencias:

  • Furusaki, A., Tsukada, M., (1990) Physica B, 165-166, p. 967
  • Beenakker, C.W.J., (1991) Phys. Rev. Lett., 67, p. 3836
  • Scheer, E., (1997) Phys. Rev. Lett., 78, p. 3535
  • Scheer, E., (1998) Nature (London), 394, p. 154
  • Gorelik, L.Y., (1998) Phys. Rev. Lett., 81, p. 2538
  • Levy Yeyati, A., Cuevas, J.C., Martín-Rodero, A., (1995) Photons and Local Probes, Vol. 300 of NATO Advanced Study Institute, Series E: Applied Sciences, 300. , edited by O. Marti and R. Möller (Kluwer, Dordrecht)
  • Nakamura, Y., (2000) Physica B, 280, p. 405
  • Bouchiat, V., (1999) J. Supercond., 12, p. 789
  • Lundin, N.I., Galperin, Y.M., (2001) Phys. Rev. B, 63, p. 094505
  • Ivanov, D.A., Feigel'man, M.V., (1999) Phys. Rev. B, 59, p. 8444
  • Ingold, G.L., Nazarov, Yu.V., (1991) Single Charge Tunneling, Vol. 294 of NATO Advanced Study Institute, Series B: Physics, 294. , edited by H. Grabert anal M.H. Devoret (Plenum, New York)
  • Chang, T.M., Skinner, J.L., (1993) Physica A, 193, p. 483
  • note; Martín-Rodero, A., Levy Yeyati, A., García-Vidal, F.J., (1996) Phys. Rev. B, 53, p. 8891
  • Averin, D., Imam, H.T., (1996) Phys. Rev. Lett., 76, p. 3814
  • Goffman, M.F., (2000) Phys. Rev. Lett., 85, p. 170
  • Tinkam, M., (1996) Introduction to Superconductivity, , McGraw-Hill, New York
  • Urbina, C., private communication; Gardiner, C.W., (1991) Quantum Noise, , Springer-Verlag, Heidelberg

Citas:

---------- APA ----------
Despósito, M.A. & Levy Yeyati, A. (2001) . Controlled dephasing of Andreev states in superconducting quantum point contacts. Physical Review B - Condensed Matter and Materials Physics, 64(14), 1405111-1405114.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01631829_v64_n14_p1405111_Desposito [ ]
---------- CHICAGO ----------
Despósito, M.A., Levy Yeyati, A. "Controlled dephasing of Andreev states in superconducting quantum point contacts" . Physical Review B - Condensed Matter and Materials Physics 64, no. 14 (2001) : 1405111-1405114.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01631829_v64_n14_p1405111_Desposito [ ]
---------- MLA ----------
Despósito, M.A., Levy Yeyati, A. "Controlled dephasing of Andreev states in superconducting quantum point contacts" . Physical Review B - Condensed Matter and Materials Physics, vol. 64, no. 14, 2001, pp. 1405111-1405114.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01631829_v64_n14_p1405111_Desposito [ ]
---------- VANCOUVER ----------
Despósito, M.A., Levy Yeyati, A. Controlled dephasing of Andreev states in superconducting quantum point contacts. Phys. Rev. B Condens. Matter Mater. Phys. 2001;64(14):1405111-1405114.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01631829_v64_n14_p1405111_Desposito [ ]