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García-Mata, I.; Roncaglia, A.J.; Wisniacki, D.A. "Comment on "exploring chaos in the Dicke model using ground-state fidelity and Loschmidt echo"" (2015) Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 91(3)
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Abstract:

In a recent paper [Phys. Rev. E 90, 022920 (2014)PRESCM1539-375510.1103/PhysRevE.90.022920] a study of the ground-state fidelity of the Dicke model as a function of the coupling parameter is presented. Abrupt jumps of the fidelity in the superradiant phase are observed and are assumed to be related to the transition to chaos. We show that this conclusion results from a misinterpretation of the numerics. In fact, if the parity symmetry is taken into account, the unexpected jumps disappear. © 2015 American Physical Society.

Registro:

Documento: Artículo
Título:Comment on "exploring chaos in the Dicke model using ground-state fidelity and Loschmidt echo"
Autor:García-Mata, I.; Roncaglia, A.J.; Wisniacki, D.A.
Filiación:Instituto de Investigaciones Físicas de Mar Del Plata (IFIMAR, CONICET), Universidad Nacional de Mar Del Plata, Mar del Plata, Argentina
Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Argentina
Departamento de Física J. J. Giambiagi, IFIBA, Universidad de Buenos Aires, Buenos Aires, 1428, Argentina
Año:2015
Volumen:91
Número:3
DOI: http://dx.doi.org/10.1103/PhysRevE.91.036901
Título revista:Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Título revista abreviado:Phys. Rev. E Stat. Nonlinear Soft Matter Phys.
ISSN:15393755
CODEN:PLEEE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15393755_v91_n3_p_GarciaMata

Referencias:

  • Bhattacharya, U., Dasgupta, S., Dutta, A., (2014) Phys. Rev. e, 90, p. 022920. , PRESCM 1539-3755
  • Emary, C., Brandes, T., (2003) Phys. Rev. Lett., 90, p. 044101. , PRLTAO 0031-9007

Citas:

---------- APA ----------
García-Mata, I., Roncaglia, A.J. & Wisniacki, D.A. (2015) . Comment on "exploring chaos in the Dicke model using ground-state fidelity and Loschmidt echo". Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 91(3).
http://dx.doi.org/10.1103/PhysRevE.91.036901
---------- CHICAGO ----------
García-Mata, I., Roncaglia, A.J., Wisniacki, D.A. "Comment on "exploring chaos in the Dicke model using ground-state fidelity and Loschmidt echo"" . Physical Review E - Statistical, Nonlinear, and Soft Matter Physics 91, no. 3 (2015).
http://dx.doi.org/10.1103/PhysRevE.91.036901
---------- MLA ----------
García-Mata, I., Roncaglia, A.J., Wisniacki, D.A. "Comment on "exploring chaos in the Dicke model using ground-state fidelity and Loschmidt echo"" . Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, vol. 91, no. 3, 2015.
http://dx.doi.org/10.1103/PhysRevE.91.036901
---------- VANCOUVER ----------
García-Mata, I., Roncaglia, A.J., Wisniacki, D.A. Comment on "exploring chaos in the Dicke model using ground-state fidelity and Loschmidt echo". Phys. Rev. E Stat. Nonlinear Soft Matter Phys. 2015;91(3).
http://dx.doi.org/10.1103/PhysRevE.91.036901