ERGODICITY IN RANDOMLY COLLIDING QUBITS

Gioacchino Massimo Palma, Giuliano Benenti, Giuseppe Gennaro

Risultato della ricerca: Articlepeer review

Abstract

The dynamics of a single qubit randomly colliding with an environment consisting of justtwo qubits is discussed. It is shown that the system reaches an equilibrium state whichcoincides with a pure random state of three qubits. Furthermore the time average andthe ensemble averages of the quantities used to characterize the approach to equilibrium(purity and tangles) coincide, a signature of ergodic behavior.
Lingua originaleEnglish
pagine (da-a)163-169
Numero di pagine7
RivistaInternational Journal of Quantum Information
Volume7
Stato di pubblicazionePublished - 2009

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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