Classical distinguishability as an operational measure of polarization
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
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.
Degree of polarization, Distinguishability, Nonparaxial fields, Transverse field, Mathematical models, Physics
Atom and Molecular Physics and Optics
IdentifiersURN: urn:nbn:se:kth:diva-149504DOI: 10.1103/PhysRevA.90.013830ISI: 000339549000003ScopusID: 2-s2.0-84905189793OAI: oai:DiVA.org:kth-149504DiVA: diva2:739986
FunderThe Swedish Foundation for International Cooperation in Research and Higher Education (STINT)Swedish Research Council, 621-2011-4575
QC 201408222014-08-222014-08-222015-06-23Bibliographically approved