Classification of singular points in the polarization field of the cosmic microwave background and eigenvectors of the Stokes matrix |
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| Authors: | A. D. Dolgov A. G. Doroshkevich D. I. Novikov I. D. Novikov |
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| Affiliation: | (1) Theoretical Astrophysics Center, DK-2100 Copenhagen, Denmark;(2) Institute of Theoretical and Experimental Physics, 117259 Moscow, Russia;(3) Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045, USA;(4) Astro-Space Center of Lebedev Physical Institute, Russian Academy of Sciences, 117924 Moscow, Russia;(5) University Observatory; NORDITA, DK-2100 Copenhagen, Denmark |
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| Abstract: | An analysis is made of the singularities of the polarization field of the cosmic microwave background, where the polarization is equal to zero. It is found that the classification of the singular points differs from the usual three types known in ordinary differential equations. The new statistical properties of the polarization field are discussed, and new methods to detect the presence of primordial tensor perturbations are indicated. Pis’ma Zh. éksp. Teor. Fiz. 69, No. 6, 395–401 (25 March 1999) Published in English in the original Russian journal. Edited by Steve Torstveit. |
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