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Assessing the Polarization of a Quantum Field from Stokes Fluctuations
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: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 105, no 15, 153602- p.Article in journal (Refereed) Published
Abstract [en]

We propose an operational degree of polarization in terms of the variance of the Stokes vector minimized over all the directions of the Poincare sphere. We examine the properties of this second-order definition and carry out its experimental determination. Quantum states with the same standard (first-order) degree of polarization are correctly discriminated by this new measure. We argue that a comprehensive quantum characterization of polarization properties requires a whole hierarchy of higher-order degrees.

Place, publisher, year, edition, pages
2010. Vol. 105, no 15, 153602- p.
Keyword [en]
Degree of polarization, Experimental determination, First-order, Higher order, Poincare, Polarization properties, Quantum field, Quantum state, Second orders, Stokes vector, Spheres
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-26626DOI: 10.1103/PhysRevLett.105.153602ISI: 000282511800006Scopus ID: 2-s2.0-77957575474OAI: oai:DiVA.org:kth-26626DiVA: diva2:374822
Note
QC 20101206Available from: 2010-12-06 Created: 2010-11-26 Last updated: 2017-12-11Bibliographically approved

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Björk, Gunnar

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