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Experimental determination of the degree of polarization of quantum states
KTH, School of Engineering Sciences (SCI), Applied Physics, Quantum Electronics and Quantum Optics, QEO.ORCID iD: 0000-0002-2082-9583
2013 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 87, no 4, 043814- p.Article in journal (Refereed) Published
Abstract [en]

We demonstrate experimental excitation-manifold-resolved polarization characterization of quantum states of light ranging from the few-photon to the many-photon level. In contrast to the traditional characterization of polarization that is based on the Stokes parameters, we experimentally determine the Stokes vector of each excitation manifold separately. Only for states with a given photon number do the methods coincide. For states with an indeterminate photon number, for example Gaussian states, the employed method gives a richer and more accurate description. We apply the method both in theory and in experiment to some common states to demonstrate its advantages.

Place, publisher, year, edition, pages
2013. Vol. 87, no 4, 043814- p.
Keyword [en]
Light, Information, Fiber
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-122515DOI: 10.1103/PhysRevA.87.043814ISI: 000317585800014Scopus ID: 2-s2.0-84876214034OAI: oai:DiVA.org:kth-122515DiVA: diva2:622996
Funder
Swedish Research Council, 319-2010-7332
Note

QC 20130524

Available from: 2013-05-24 Created: 2013-05-23 Last updated: 2017-12-06Bibliographically approved

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Björk, Gunnar

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