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Proceedings Paper

Measures of decoherence
Author(s): Leonid Fedichkin; Arkady Fedorov; Vladimir Privman
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Paper Abstract

Methods for quantifying environmentally induced decoherence in quantum systems are investigated. We formulate criteria for measuring the degree of decoherence and consider several representative examples, including a spin interacting with the modes of a bosonic, e.g., phonon, bath. We formulate an approach based on the operator norm measuring the deviation of the actual density matrix from the ideal one which would describe the system without environmental interactions.

Paper Details

Date Published: 4 August 2003
PDF: 12 pages
Proc. SPIE 5105, Quantum Information and Computation, (4 August 2003); doi: 10.1117/12.486792
Show Author Affiliations
Leonid Fedichkin, Clarkson Univ. (United States)
Arkady Fedorov, Clarkson Univ. (United States)
Vladimir Privman, Clarkson Univ. (United States)

Published in SPIE Proceedings Vol. 5105:
Quantum Information and Computation
Eric Donkor; Andrew R. Pirich; Howard E. Brandt, Editor(s)

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