Possibility of observing dark matter via the gyromagnetic faraday effect

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20 Scopus citations


If dark matter consists of cold, neutral particles with a nonzero magnetic moment, then, in the presence of an external magnetic field, a measurable gyromagnetic Faraday effect becomes possible. This enables direct constraints on the nature and distribution of such dark matter through detailed measurements of the polarization and temperature of the cosmic-microwave background radiation.

Original languageEnglish
Article number041303
JournalPhysical Review Letters
Issue number4
StatePublished - Jan 29 2008

ASJC Scopus subject areas

  • General Physics and Astronomy


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