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Proceedings Paper

How to localize excitations in a quantum computer with perpetually coupled qubits
Author(s): Mark I. Dykman; Lea F. Santos; Michael Shapiro; Felix M. Izrailev
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Paper Abstract

Strong many-particle localization is studied in a 1D array of perpetually coupled qubits and an equivalent 1D system of interacting fermions. We construct a bounded sequence of the on-site fermion energies, or qubit transition frequencies, that suppresses resonant hopping between both nearest and remote neighbors. Besides quasi-exponential decay of the single-particle transition amplitude,it leads to long lived strongly localized many-particle states. This makes quantum computing with time-independent qubit coupling viable.

Paper Details

Date Published: 25 May 2004
PDF: 9 pages
Proc. SPIE 5472, Noise and Information in Nanoelectronics, Sensors, and Standards II, (25 May 2004); doi: 10.1117/12.546897
Show Author Affiliations
Mark I. Dykman, Michigan State Univ. (United States)
Lea F. Santos, Michigan State Univ. (United States)
Michael Shapiro, Michigan State Univ. (United States)
Felix M. Izrailev, Univ. Autonoma de Puebla (Mexico)

Published in SPIE Proceedings Vol. 5472:
Noise and Information in Nanoelectronics, Sensors, and Standards II
Janusz M. Smulko; Yaroslav Blanter; Mark I. Dykman; Laszlo B. Kish, Editor(s)

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