Measures of decoherence

Leonid Fedichkin; Arkady Fedorov; Vladimir Privman

doi:10.1117/12.486792

4 August 2003 Measures of decoherence

Leonid Fedichkin, Arkady Fedorov, Vladimir Privman

Proceedings Volume 5105, Quantum Information and Computation; (2003) https://doi.org/10.1117/12.486792
Event: AeroSense 2003, 2003, Orlando, Florida, United States

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.

Citation Download Citation

Leonid Fedichkin, Arkady Fedorov, and Vladimir Privman "Measures of decoherence", Proc. SPIE 5105, Quantum Information and Computation, (4 August 2003); https://doi.org/10.1117/12.486792

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