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has been cited by the following article:
TITLE: Quasi non-Markovian Approach to the Study of Decoherence of a Controlled-Not Quantum Gate in a Chain of Few Nuclear Spins Quantum Computer
AUTHORS: Pablo Carlos López Vázquez, Gustavo López Vázquez
KEYWORDS: Decoherence; Chain of Nuclear Spins; Controlled-Not
JOURNAL NAME: Journal of Modern Physics, Vol.3 No.9, September 24, 2012
ABSTRACT: We develop in the weak coupling approximation a quasi-non-Markovian master equation and study the phenomenon of decoherence during the operation of a controlled-not (CNOT) quantum gate in a quantum computer model formed by a linear chain of three nuclear spins system with second neighbor Ising interaction between them. We compare with the behavior of the Markovian counterpart for temperature different from zero (thermalization) and at zero temperature for low and high dissipation rates. At low dissipation there is a very small difference between Markovian and quasi no-Markovian at any temperature which is unlikely to be measured, and at high dissipation there is a difference which is likely to be measured at any temperature.