Constraining primordial magnetic fields with CMB polarization experiments

Journal Article · Sun Jun 15 00:00:00 EDT 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.77.123004· OSTI ID:21205148

Kristiansen, Jostein R; Ferreira, Pedro G ^[1]

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1. Institute of Theoretical Astrophysics, University of Oslo, Box 1029, 0315 Oslo (Norway)

We calculate the effect that a primordial homogeneous magnetic field, B{sub 0}, will have on the different CMB power spectra due to Faraday rotation. Concentrating on the TB, EB, and BB correlations, we forecast the ability for future CMB polarization experiments to constrain B{sub 0}. Our results depend on how well the foregrounds can be subtracted from the CMB maps, but we find a predicted error between {sigma}{sub B{sub 0}}=4x10{sup -11} G (for the QUIET experiment with foregrounds perfectly subtracted) and 3x10{sup -10} G (with the Clover experiment with no foreground subtraction). These constraints are two orders of magnitude better than the present limits on B{sub 0}.

• OSTI ID: 21205148
• Journal Information: Physical Review. D, Particles Fields, Vol. 77, Issue 12; Other Information: DOI: 10.1103/PhysRevD.77.123004; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CORRELATIONS
FARADAY EFFECT
MAGNETIC FIELDS
POLARIZATION
RELICT RADIATION
SIMULATION
SPECTRA