Slow heating in a quantum coupled kicked rotors system

  title={Slow heating in a quantum coupled kicked rotors system},
  author={Simone Notarnicola and Alessandro Silva and Rosario Fazio and Angelo Russomanno},
  journal={Journal of Statistical Mechanics: Theory and Experiment},
We consider a finite-size periodically driven quantum system of coupled kicked rotors which exhibits two distinct regimes in parameter space: a dynamically-localized one with kinetic-energy saturation in time and a chaotic one with unbounded energy absorption (dynamical delocalization). We provide numerical evidence that the kinetic energy grows subdiffusively in time in a parameter region close to the boundary of the chaotic dynamically-delocalized regime. We map the different regimes of the… 
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