Primordial magnetism in CMB B modes
2013 ◽
Vol 91
(6)
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pp. 451-454
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Keyword(s):
Cosmic microwave background (CMB) polarization B modes induced by Faraday rotation (FR) can provide a distinctive signature of primordial magnetic fields because of their characteristic frequency dependence and because they are only weakly damped on small scales. FR also leads to mode-coupling correlations between the E- and B-type polarizations and between the temperature and the B mode. These additional correlations can further help distinguish magnetic fields from other sources of B modes. We review the FR-induced CMB signatures and present the constraints on primordial magnetism that can be expected from upcoming CMB experiments. Our results suggest that FR of CMB will be a promising probe of primordial magnetic fields.
2020 ◽
Vol 500
(4)
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pp. 5350-5368
2015 ◽
Vol 2015
(06)
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pp. 027-027
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2009 ◽
Vol 2009
(06)
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pp. 021-021
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2003 ◽
Vol 344
(2)
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pp. L31-L35
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2014 ◽
Vol 2014
(01)
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pp. 009-009
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