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:

We calculate the geometric phase for an open system (spin-boson model) which interacts with an environment (ohmic or nonohmic) at arbitrary temperature. However there have been many assumptions about the time scale at which the geometric phase can be measured, there has been no reported observation of geometric phases for mixed states under nonunitary evolution yet. We study not only how they are corrected by the presence of the different type of environments but estimate the corresponding times at which decoherence becomes effective as well. These estimations should be taken into account when planning experimental setups to study the geometric phase in the nonunitary regime, particularly important for the application of fault-tolerant quantum computation. © 2006 The American Physical Society.

Registro:

Documento: Artículo
Título:Geometric phases in open systems: A model to study how they are corrected by decoherence
Autor:Lombardo, F.C.; Villar, P.I.
Filiación:Departamento de Física Juan José Giambiagi, FCEyN UBA, Pabellóin I, 1428 Buenos Aires, Argentina
Palabras clave:Fault-tolerant quantum computations; Geometric phases; Coherent light; Computation theory; Mathematical models; Numerical methods; Open systems; Phase transitions; Quantum theory; Thermal effects; Computational geometry
Año:2006
Volumen:74
Número:4
DOI: http://dx.doi.org/10.1103/PhysRevA.74.042311
Título revista:Physical Review A - Atomic, Molecular, and Optical Physics
Título revista abreviado:Phys Rev A
ISSN:10502947
CODEN:PLRAA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v74_n4_p_Lombardo

Referencias:

  • Zurek, W., (2001) Rev. Mod. Phys., 75, p. 715. , RMPHAT 0034-6861 10.1103/RevModPhys.75.715
  • Berry, M.V., (1984) Proc. R. Soc. London, Ser. A, 392, p. 45. , PRLAAZ 1364-5021
  • Sjoqvist, E., Pati, A.K., Ekert, A., Anandan, J.S., Ericsson, M., Oi, D.K.L., Vedral, V., (2000) Phys. Rev. Lett., 85, p. 2845. , PRLTAO 0031-9007 10.1103/PhysRevLett.85.2845
  • Singh, K., Tong, D.M., Basu, K., Chen, J.L., Du, J.F., (2003) Phys. Rev. A, 67, p. 032106. , PLRAAN 1050-2947 10.1103/PhysRevA.67.032106
  • Rezakhani, A.T., Zanardi, P., (2006) Phys. Rev. A, 73, p. 012107. , PLRAAN 1050-2947 10.1103/PhysRevA.73.012107
  • Carollo, A., Fuentes-Guridi, I., Santos, M.F., Vedral, V., (2003) Phys. Rev. Lett., 90, p. 160402. , PRLTAO 0031-9007 10.1103/PhysRevLett.90.160402
  • Carollo, A., Fuentes-Guridi, I., Santos, M.F., Vedral, V., (2004) Phys. Rev. Lett., 92, p. 020402. , PRLTAO 0031-9007 10.1103/PhysRevLett.92.020402
  • Carollo, A., Santos, M.F., Vedral, V., (2006) Phys. Rev. Lett., 96, p. 020403. , PRLTAO 0031-9007 10.1103/PhysRevLett.96.020403
  • Carollo, A., Massimo Palma, G., Lozinski, A., Santos, M.F., Vedral, V., (2006) Phys. Rev. Lett., 96, p. 150403. , PRLTAO 0031-9007 10.1103/PhysRevLettt.96.150403
  • Tong, D.M., Sjoqvist, E., Kwek, L.C., Oh, C.H., (2004) Phys. Rev. Lett., 93, p. 080405. , PRLTAO 0031-9007 10.1103/PhysRevLett.93.063001
  • Whitney, R.S., Makhlin, Y., Shnirman, A., Gefen, Y., (2005) Phys. Rev. Lett., 94, p. 070407. , PRLTAO 0031-9007 10.1103/PhysRevLett.94.070407
  • Leggett, A.J., Chakravarty, S., Dorsey, A.T., Fisher, M.P.A., Garg, A., Zwerger, W., (1987) Rev. Mod. Phys., 59, p. 1. , RMPHAT 0034-6861 10.1103/RevModPhys.59.1
  • Palma, G.M., Suominen, K., Ekert, A., (1996) Proc. R. Soc. London, Ser. A, 452, p. 567. , PRLAAZ 1364-5021
  • Viola, L., Lloyd, S., (1998) Phys. Rev. A, 58, p. 2733. , PLRAAN 1050-2947 10.1103/PhysRevA.58.2733
  • Falci, G., Fazio, R., Palma, G.M., Siewert, J., Vedral, V., (2000) Nature (London), 407, p. 355. , NATUAS 0028-0836 10.1038/35030052
  • Yi, X.X., Tong, D.M., Wang, L.C., Kwek, L.C., Oh, C.H., (2006) Phys. Rev. A, 73, p. 052103. , PLRAAN 1050-2947 10.1103/PhysRevA.73.052103
  • Lombardo, F.C., Mazzitelli, F.D., Villar, P.I., (2005) Phys. Rev. A, 72, p. 042111. , PLRAAN 1050-2947 10.1103/PhysRevA.72.042111
  • Lombardo, F.C., Villar, P.I., (2006) J. Phys. A, 39, p. 6509. , JPHAC5 0305-4470 10.1088/0305-4470/39/21/S48
  • Rezakhani, A.T., Zanardi, P., (2006) Phys. Rev. A, 73, p. 052117. , PLRAAN 1050-2947 10.1103/PhysRevA.73.052117
  • Ekert, A., (2000) J. Mod. Opt., 47, p. 2501. , JMOPEW 0950-0340 10.1080/095003400750039500
  • Du, J., Zou, P., Shi, M., Kwek, L.C., Pan, J., Oh, C.H., Ekert, A., Ericsson, M., (2003) Phys. Rev. Lett., 91, p. 100403. , PRLTAO 0031-9007 10.1103/PhysRevLett.91.100403
  • Fuentes-Guridi, I., Girelli, F., Livine, E., (2005) Phys. Rev. Lett., 94, p. 020503. , PRLTAO 0031-9007 10.1103/PhysRevLett.94.020503

Citas:

---------- APA ----------
Lombardo, F.C. & Villar, P.I. (2006) . Geometric phases in open systems: A model to study how they are corrected by decoherence. Physical Review A - Atomic, Molecular, and Optical Physics, 74(4).
http://dx.doi.org/10.1103/PhysRevA.74.042311
---------- CHICAGO ----------
Lombardo, F.C., Villar, P.I. "Geometric phases in open systems: A model to study how they are corrected by decoherence" . Physical Review A - Atomic, Molecular, and Optical Physics 74, no. 4 (2006).
http://dx.doi.org/10.1103/PhysRevA.74.042311
---------- MLA ----------
Lombardo, F.C., Villar, P.I. "Geometric phases in open systems: A model to study how they are corrected by decoherence" . Physical Review A - Atomic, Molecular, and Optical Physics, vol. 74, no. 4, 2006.
http://dx.doi.org/10.1103/PhysRevA.74.042311
---------- VANCOUVER ----------
Lombardo, F.C., Villar, P.I. Geometric phases in open systems: A model to study how they are corrected by decoherence. Phys Rev A. 2006;74(4).
http://dx.doi.org/10.1103/PhysRevA.74.042311