ERGODICITY IN RANDOMLY COLLIDING QUBITS

Gioacchino Massimo Palma; Giuliano Benenti; Giuseppe Gennaro

ERGODICITY IN RANDOMLY COLLIDING QUBITS

Gioacchino Massimo Palma, Giuliano Benenti, Giuseppe Gennaro

Fisica e Chimica - Emilio Segrè

Risultato della ricerca: Article › peer 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 originale	English
pagine (da-a)	163-169
Numero di pagine	7
Rivista	International Journal of Quantum Information
Volume	7
Stato di pubblicazione	Published - 2009

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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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.",

keywords = "Random collisions, entanglement, irreversibility, Random collisions, entanglement, irreversibility",

author = "Palma, {Gioacchino Massimo} and Giuliano Benenti and Giuseppe Gennaro",

year = "2009",

language = "English",

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pages = "163--169",

journal = "International Journal of Quantum Information",

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TY - JOUR

T1 - ERGODICITY IN RANDOMLY COLLIDING QUBITS

AU - Palma, Gioacchino Massimo

AU - Benenti, Giuliano

AU - Gennaro, Giuseppe

PY - 2009

Y1 - 2009

N2 - 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.

AB - 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.

KW - Random collisions

KW - entanglement

KW - irreversibility

KW - Random collisions

KW - entanglement

KW - irreversibility

UR - http://hdl.handle.net/10447/36815

M3 - Article

VL - 7

SP - 163

EP - 169

JO - International Journal of Quantum Information

JF - International Journal of Quantum Information

SN - 0219-7499

ER -