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Sökning: WFRF:(Marquardt L) > (2010-2014)

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1.
  • Klimov, A. B., et al. (författare)
  • Assessing the Polarization of a Quantum Field from Stokes Fluctuations
  • 2010
  • Ingår i: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 105:15, s. 153602-
  • Tidskriftsartikel (refereegranskat)abstract
    • 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.
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3.
  • Sánchez-Soto, L. L., et al. (författare)
  • Polarization correlations in quantum optics
  • 2011
  • Ingår i: Opt.InfoBase Conf. Papers. - 9781557529282
  • Konferensbidrag (refereegranskat)abstract
    • The standard degree of polarization involves exclusively first-order moments of the Stokes variables. This may be sufficient for most classical problems, but for quantum fields higher-order correlations are crucial. We claim that a complete polarization characterization must involve a whole hierarchy of polarization degrees constructed order by order, as it happens in coherence theory. We present here a second-order degree and determine it experimentally.
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4.
  • de la Hoz, P., et al. (författare)
  • Multipolar hierarchy of efficient quantum polarization measures
  • 2013
  • Ingår i: Physical Review A. Atomic, Molecular, and Optical Physics. - 1050-2947 .- 1094-1622. ; 88:6, s. 063803-
  • Tidskriftsartikel (refereegranskat)abstract
    • We advocate a simple multipole expansion of the polarization density matrix. The resulting multipoles appear as successive moments of the Stokes variables and can be obtained from feasible measurements. In terms of these multipoles we construct a whole hierarchy of measures that accurately assess higher-order polarization fluctuations.
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  • Resultat 1-6 av 6

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