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Degree of polarization and quantum-mechanical purity
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2008 (English)Article in journal (Refereed) Published
Abstract [en]

The purity parameter is used in quantum mechanics to discriminate pure states from mixed states. We employ this concept to define a degree of polarization for general, three-dimensional, classical random electric fields. Our approach leads to a result that is identical with a recent definition obtained by a decomposition of the polarization matrix in terms of the Gell-Mann matrices. We also give an expression for this degree of polarization based on the constituent two-dimensional subsystems. [DOI: 10.2971/jeos.2008.08014]

Place, publisher, year, edition, pages
2008. Vol. 3
Keyword [en]
Polarization, entropy, purity, matrix, systems, fields, states, optics
URN: urn:nbn:se:kth:diva-18303DOI: 10.2971/jeos.2008.08014ISI: 000264659300018ScopusID: 2-s2.0-43349099925OAI: diva2:336349
QC 20100525Available from: 2010-08-05 Created: 2010-08-05Bibliographically approved

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Friberg, Ari T.
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