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Quantum degrees of polarization
KTH, School of Information and Communication Technology (ICT), Optics and Photonics, Quantum Electronics and Quantum Optics, QEO.ORCID iD: 0000-0002-2082-9583
KTH, School of Information and Communication Technology (ICT), Optics and Photonics, Quantum Electronics and Quantum Optics, QEO.
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2010 (English)In: Optics Communications, ISSN 0030-4018, E-ISSN 1873-0310, Vol. 283, no 22, 4440-4447 p.Article in journal (Refereed) Published
Abstract [en]

We discuss different proposals for the degree of polarization of quantum fields. The simplest approach, namely making a direct analogy with the classical description via the Stokes operators, is known to produce unsatisfactory results. Still, we argue that these operators and their properties should be basic for any measure of polarization. We compare alternative quantum degrees and put forth that they order various states differently. This is to be expected, since, despite being rooted in the Stokes operators, each of these measures only captures certain characteristics. Therefore, it is likely that several quantum degrees of polarization will coexist, each one having its specific domain of usefulness.

Place, publisher, year, edition, pages
2010. Vol. 283, no 22, 4440-4447 p.
Keyword [en]
Polarization, Quantum optics, Stokes operators, Degree of polarization, Unpolarized states
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:kth:diva-26294DOI: 10.1016/j.optcom.2010.04.088ISI: 000282908500005Scopus ID: 2-s2.0-77956877602OAI: oai:DiVA.org:kth-26294DiVA: diva2:372029
Note
QC 20101123Available from: 2010-11-23 Created: 2010-11-21 Last updated: 2017-12-12Bibliographically approved

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Björk, Gunnar

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