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Symmetries and ergodic properties in quantum probability

Volume 149 / 2017

Vitonofrio Crismale, Francesco Fidaleo Colloquium Mathematicum 149 (2017), 1-20 MSC: Primary 60G10, 46L53, 46L55, 37A30; Secondary 46L30, 46N50. DOI: 10.4064/cm6863-9-2016 Published online: 27 March 2017

Abstract

We deal with the general structure of (noncommutative) stochastic processes by using the standard techniques of operator algebras. Any stochastic process is associated to a state on a universal object, i.e. the free product $C^*$-algebra, in a natural way. In this setting, one recovers the classical (i.e. commutative) probability scheme and many others, like those associated to the monotone, boolean and $q$-deformed canonical commutation relations including the Bose/Fermi and Boltzmann cases. Natural symmetries like stationarity and exchangeability, as well as the ergodic properties of the stochastic processes are reviewed in detail for many interesting cases arising from quantum physics and probability.

Authors

  • Vitonofrio CrismaleDipartimento di Matematica
    Università degli studi di Bari
    Via E. Orabona, 4
    70125 Bari, Italy
    e-mail
  • Francesco FidaleoDipartimento di Matematica
    Università degli studi di Roma Tor Vergata
    Via della Ricerca Scientifica 1
    00133 Roma, Italy
    e-mail

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