Magnetic domain walls of relic fermions as Dark Energy

Journal Article · Fri Dec 02 00:00:00 EST 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2149755· OSTI ID:20729213

Yajnik, Urjit A ^[1]

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1. Department of Physics, Indian Institute of Technology, Bombay, Mumbai 400076 (India)

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 {approx} 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.

• OSTI ID: 20729213
• Journal Information: AIP Conference Proceedings, Vol. 805, Issue 1; Conference: PASCOS 2005: 11. international symposium on particles, strings, and cosmology, Gyeongju (Korea, Republic of), 30 May - 4 Jun 2005; Other Information: DOI: 10.1063/1.2149755; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DOMAIN STRUCTURE
FERROMAGNETISM
MAGNETIC MOMENTS
NEUTRINOS
NONLUMINOUS MATTER
REST MASS