How to De-Rotate the Cosmic Microwave Background Polarization

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dc.creatorKamionkowski, Marc
dc.date2008-10-07
dc.date2009-03-01
dc.date.accessioned2026-07-07T13:01:02Z
dc.date.available2026-07-07T13:01:02Z
dc.descriptionIf the linear polarization of the cosmic microwave background (CMB) is rotated in a frequency-independent manner as it propagates from the surface of last scatter, it may introduce a B-mode polarization. Here I show that measurement of higher-order TE, EE, EB, and TB correlations induced by this rotation can be used to reconstruct the rotation angle as a function of position on the sky. This technique can be used to distinguish primordial B modes from those induced by rotation. The effects of rotation can be distinguished geometrically from similar effects due to cosmic shear.
dc.description4 pages, this version to appear in PRL
dc.identifierhttps://arxiv.org/abs/0810.1286
dc.identifierhttp://arxiv.org/abs/0810.1286
dc.identifierPhys.Rev.Lett.102:111302,2009
dc.identifierdoi:10.1103/PhysRevLett.102.111302
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/226031
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.titleHow to De-Rotate the Cosmic Microwave Background Polarization
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