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Proceedings Paper

Decoherence of quantum states and its suppression in ensemble large-scale solid state NMR quantum computers
Author(s): Alexander A. Kokin
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Paper Abstract

It is discussed the decoherence problems in ensemble large-scale solid state NMR quantum computer based on the array of 31P donor atoms having nuclear spin I=1/2. It is considered here, as main mechanisms of decoherence for low temperature (<0.1K), the adiabatic processes of random modulation of qubit resonance frequency determined by secular part of nuclear spin interaction with electron spin of the basic atoms, with impurity paramagnetic atoms and also with nuclear spins of impurity and of spin temperature whereby the required decoherence suppression is obtained. It is discussed the random phase error suppression in the ensemble quantum register basic states.

Paper Details

Date Published: 23 July 2003
PDF: 8 pages
Proc. SPIE 5128, First International Symposium on Quantum Informatics, (23 July 2003); doi: 10.1117/12.517916
Show Author Affiliations
Alexander A. Kokin, Institute of Physics and Technology (Russia)

Published in SPIE Proceedings Vol. 5128:
First International Symposium on Quantum Informatics
Yuri I. Ozhigov, Editor(s)

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