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Degrees of polarization for a quantum field
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2006 (English)In: 12th Central European Workshop on Quantum Optics / [ed] Shumovsky, A; ManKo, M; Wallentowitz, S, 2006, Vol. 36, 177-182 p.Conference paper, Published paper (Refereed)
Abstract [en]

Unpolarized light is invariant with respect to any SU(2) polarization transformation. Since this fully characterizes the set of density matrices representing unpolarized states, we introduce the degree of polarization of a quantum state as its distance to the set of unpolarized states. We discuss different candidates of distance, and show that they induce fundamentally different degrees of polarization.

Place, publisher, year, edition, pages
2006. Vol. 36, 177-182 p.
Series
Journal of Physics: Conference Series, ISSN 1742-6588 ; 36
Keyword [en]
Hilbert-Schmidt Distance, Unpolarized Radiation, Entanglement Measures, Stokes Parameters, States, Light, Fidelity, Interference, Systems, Optics
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-41721DOI: 10.1088/1742-6596/36/1/026ISI: 000239847500026Scopus ID: 2-s2.0-33646426389OAI: oai:DiVA.org:kth-41721DiVA: diva2:445251
Conference
12th Central European Workshop on Quantum Optics Location: Ankara, Turkey, Date: JUN 06-09, 2005
Note
QC 20111003Available from: 2011-10-03 Created: 2011-09-30 Last updated: 2011-10-03Bibliographically approved

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Björk, Gunnar

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