Astrophysics
[Submitted on 17 Jan 2005 (v1), last revised 17 Nov 2005 (this version, v3)]
Title:Magnetic domain walls of relic fermions as Dark Energy
View PDFAbstract: 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.
Submission history
From: Urjit A. Yajnik [view email][v1] Mon, 17 Jan 2005 19:18:42 UTC (11 KB)
[v2] Wed, 15 Jun 2005 07:57:58 UTC (16 KB)
[v3] Thu, 17 Nov 2005 18:14:25 UTC (30 KB)
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