Models of short-time qubit decoherence

Dmitry Solenov; Vladimir Privman

doi:10.1117/12.541458

24 August 2004 Models of short-time qubit decoherence

Dmitry Solenov, Vladimir Privman

Proceedings Volume 5436, Quantum Information and Computation II; (2004) https://doi.org/10.1117/12.541458
Event: Defense and Security, 2004, Orlando, Florida, United States

Abstract

We compare approaches to evaluation of decoherence at low temperatures in two-state quantum systems weakly coupled to the environment. By analyzing an exactly solvable model, we demonstrate that a non-Markovian approximation scheme yields good quality estimates of the reduced density matrix for time scales appropriate for evaluation of quantum computing designs.

Citation Download Citation

Dmitry Solenov and Vladimir Privman "Models of short-time qubit decoherence", Proc. SPIE 5436, Quantum Information and Computation II, (24 August 2004); https://doi.org/10.1117/12.541458

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