Measures of Decoherence

Leonid Fedichkin; Arkady Fedorov; Vladimir Privman

doi:10.1117/12.486792

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Measures of Decoherence

Leonid Fedichkin·Arkady Fedorov·Vladimir Privman

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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.

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Leonid Fedichkin, Arkady Fedorov, Vladimir Privman. 2004-11-28. Measures of Decoherence. https://doi.org/10.1117/12.486792

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