Magnetic domain walls of relic fermions as Dark Energy

Urjit A. Yajnik

doi:10.1063/1.2149755

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Magnetic domain walls of relic fermions as Dark Energy

Urjit A. Yajnik

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Abstract

We show that relic fermions of the Big Bang can enter a ferromagnetic state if they possess a magnetic moment and satisfy the requirements of Stoner theory of itinerant ferromagnetism. The domain walls of this ferromagnetism can successfully simulate Dark Energy over the observable epoch spanning $\sim 10$ billion years. We obtain conditions on the anomalous magnetic moment of such fermions and their masses. Known neutrinos fail to satisfy the requirements thus pointing to the possibility of a new ultralight sector in Particle Physics.

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Urjit A. Yajnik. 2005-11-17. Magnetic domain walls of relic fermions as Dark Energy. https://doi.org/10.1063/1.2149755

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