Assessing the Polarization of a Quantum Field from Stokes Fluctuations
2010 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 105, no 15, 153602- p.Article in journal (Refereed) Published
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.
Degree of polarization, Experimental determination, First-order, Higher order, Poincare, Polarization properties, Quantum field, Quantum state, Second orders, Stokes vector, Spheres
IdentifiersURN: urn:nbn:se:kth:diva-26626DOI: 10.1103/PhysRevLett.105.153602ISI: 000282511800006ScopusID: 2-s2.0-77957575474OAI: oai:DiVA.org:kth-26626DiVA: diva2:374822
QC 201012062010-12-062010-11-262010-12-06Bibliographically approved