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On the rotating wave approximation in the adiabatic limit
Stockholm University, Faculty of Science, Department of Physics.
2013 (English)In: Physica Scripta, ISSN 0031-8949, E-ISSN 1402-4896, Vol. T153, 014040- p.Article in journal (Refereed) Published
Abstract [en]

I revisit a longstanding question in quantum optics; when is the rotating wave approximation justified? In terms of the Jaynes-Cummings and Rabi models I demonstrate that the approximation in general breaks down in the adiabatic limit regardless of system parameters. This is explicitly shown by comparing Berry phases of the two models, where it is found that this geometrical phase is strictly zero in the Rabi model contrary to the non-trivial Berry phase of the Jaynes-Cummings model. The source of this surprising result is traced back to different topologies in the two models.

Place, publisher, year, edition, pages
2013. Vol. T153, 014040- p.
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Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-89729DOI: 10.1088/0031-8949/2013/T153/014040ISI: 000316953400041OAI: oai:DiVA.org:su-89729DiVA: diva2:620088
Note

AuthorCount:1;

Available from: 2013-05-07 Created: 2013-05-06 Last updated: 2017-12-06Bibliographically approved

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