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hal-00003608, version 3

Quantum Variance and Ergodicity for the baker's map

Mirko Degli Esposti () 1, Stéphane Nonnenmacher () 2, Brian Winn () 1

Communications in Mathematical Physics 263, Number 2 (2006) 325 - 352

Résumé : We prove a Egorov theorem, or quantum-classical correspondence, for the quantised baker's map, valid up to the Ehrenfest time. This yields a logarithmic upper bound for the decay of the quantum variance, and, as a corollary, a quantum ergodic theorem for this map.

  • 1 :  Department of Mathematics, University of Bologna (BOLOGNA)
  • Università degli studi di Bologna
  • 2 :  Service de Physique Théorique (SPhT)
  • CNRS : URA2306 – CEA : DSM/SPHT
 
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  • Soumis le : Jeudi 24 Mars 2005, 17:55:56
  • Dernière modification le : Vendredi 3 Mars 2006, 19:43:14