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Classical distinguishability as an operational measure of polarization
KTH, School of Engineering Sciences (SCI), Applied Physics, Quantum Electronics and Quantum Optics, QEO.ORCID iD: 0000-0002-2082-9583
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2014 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 90, no 1, 013830- p.Article in journal (Refereed) Published
Abstract [en]

We put forward an operational degree of polarization that can be extended in a natural way to fields whose wave fronts are not necessarily planar. This measure appears as a distance from a state to the set of all of its polarization-transformed counterparts. By using the Hilbert-Schmidt metric, the resulting degree is a sum of two terms: one is the purity of the state and the other can be interpreted as a classical distinguishability, which can be experimentally determined in an interferometric setup. For transverse fields, this reduces to the standard approach, whereas it allows one to get a straight expression for nonparaxial fields.

Place, publisher, year, edition, pages
2014. Vol. 90, no 1, 013830- p.
Keyword [en]
Degree of polarization, Distinguishability, Nonparaxial fields, Transverse field, Mathematical models, Physics
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:kth:diva-149504DOI: 10.1103/PhysRevA.90.013830ISI: 000339549000003Scopus ID: 2-s2.0-84905189793OAI: oai:DiVA.org:kth-149504DiVA: diva2:739986
Funder
The Swedish Foundation for International Cooperation in Research and Higher Education (STINT)Swedish Research Council, 621-2011-4575
Note

QC 20140822

Available from: 2014-08-22 Created: 2014-08-22 Last updated: 2017-12-05Bibliographically approved

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Björk, Gunnar

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Quantum Electronics and Quantum Optics, QEO
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
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Output format
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