Now showing items 63-68 of 68

    • Thermalization time in many-body quantum systems. 

      Santos, Lea F.; Torres-Herrera, E. Jonathan; Pérez-Bernal, Francisco; Lezama, Talía L.M.; Bar Lev, Yevgeny (arXiv preprint, 2021-02-23)
      Isolated chaotic many-body quantum systems can reach thermal equilibrium, but it is not yet clear how long they take to do so. To answer this question, we use exact numerical methods and analyze the entire evolution, ...
    • Thouless and Relaxation Time Scales in Many-Body Quantum Systems. 

      Schiulaz, Mauro; Torres-Herrera, E.J.; Santos, Lea F. (arXiv.org, 2018-07-19)
      Studies of the dynamics of isolated interacting many-body quantum systems are at the forefront of experimental and theoretical physics. A major open question is the identification of the time scales involved in the ...
    • Thouless and relaxation time scales in many-body quantum systems. 

      Santos, Lea F.; Schiulaz, Mauro; Torres-Herrera, E. Jonathan (American Physical Society, 2019-05-28)
      Abstract A major open question in studies of nonequilibrium quantum dynamics is the identification of the time scales involved in the relaxation process of isolated quantum systems that have many interacting particles. ...
    • Timescales in the quench dynamics of many-body quantum systems: Participation ratio versus out-of-time ordered correlator. 

      Santos, Lea F.; Borgonovi, F.; Izrailev, F.M. (American Physical Society, 2019-05-31)
      We study quench dynamics in the many-body Hilbert space using two isolated systems with a finite number of interacting particles: a paradigmatic model of randomly interacting bosons and a dynamical (clean) model of ...
    • Ubiquitous quantum scarring does not prevent ergodicity. 

      Santos, Lea F.; Pilatowsky-Cameo, Saúl; Villaseñor, David; Bastarrachea-Magnani, Miguel A.; Lerma-Hernández, Sergio; Hirsch, Jorge G. (SpringerNature, 2021-02-08)
      In a classically chaotic system that is ergodic, any trajectory will be arbitrarily close to any point of the available phase space after a long time, filling it uniformly. Using Born’s rules to connect quantum states with ...
    • Universal fractional map and cascade of bifurcations type attractors 

      Edelman, Mark (Chaos: An Interdisciplinary Journal of Nonlinear Science, 2013-09)
      We modified the way in which the Universal Map is obtained in the regular dynamics to derive the Universal α-Family of Maps depending on a single parameter α>0, which is the order of the fractional derivative in the nonlinear ...