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Reviews of topical problems


Dissipation and decoherence in quantum systems


Lebedev Physical Institute, Russian Academy of Sciences, Leninsky prosp. 53, Moscow, 119991, Russian Federation

The theory of dissipative quantum systems and its relation to the quantum theory of continuous measurements are reviewed. Constructing a correct theory of a dissipative quantum system requires that the system’s interaction with its environment (reservoir) be taken into account. Since information about the system is ’recorded’ in the state of the reservoir, the quantum theory of continuous measurements can be used to account for the influence of the reservoir. If based on the use of restricted path integrals, this theory does not require an explicit reservoir model and is therefore much simpler technically.

Fulltext is available at IOP
PACS: 03.65.−w, 03.65.Ta, 03.65.Yz (all)
DOI: 10.1070/PU2003v046n11ABEH001680
URL: https://ufn.ru/en/articles/2003/11/d/
Citation: Menskii M B "Dissipation and decoherence in quantum systems" Phys. Usp. 46 1163–1182 (2003)
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Оригинал: Менский М Б «Диссипация и декогеренция квантовых систем» УФН 173 1199–1219 (2003); DOI: 10.3367/UFNr.0173.200311d.1199

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