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09 July 2020
 
  » arxiv » quant-ph/9702001

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Quantum Computers and Dissipation
G. Massimo Palma ; Kalle-Antti Suominen ; Artur K. Ekert ;
Date 31 Dec 1996
Journal Proc.Roy.Soc.Lond. A452 (1996) 567-584
Subject quant-ph
AffiliationClarendon Laboratory, University of Oxford, U.K.
AbstractWe analyse dissipation in quantum computation and its destructive impact on efficiency of quantum algorithms. Using a general model of decoherence, we study the time evolution of a quantum register of arbitrary length coupled with an environment of arbitrary coherence length. We discuss relations between decoherence and computational complexity and show that the quantum factorization algorithm must be modified in order to be regarded as efficient and realistic.
Source arXiv, quant-ph/9702001
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