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Title: Magnetic domain walls of relic fermions as Dark Energy

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 {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.

Authors:
 [1]
  1. Department of Physics, Indian Institute of Technology, Bombay, Mumbai 400076 (India)
Publication Date:
OSTI Identifier:
20729213
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 805; Journal 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)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; DOMAIN STRUCTURE; FERROMAGNETISM; MAGNETIC MOMENTS; NEUTRINOS; NONLUMINOUS MATTER; REST MASS

Citation Formats

Yajnik, Urjit A. Magnetic domain walls of relic fermions as Dark Energy. United States: N. p., 2005. Web. doi:10.1063/1.2149755.
Yajnik, Urjit A. Magnetic domain walls of relic fermions as Dark Energy. United States. doi:10.1063/1.2149755.
Yajnik, Urjit A. Fri . "Magnetic domain walls of relic fermions as Dark Energy". United States. doi:10.1063/1.2149755.
@article{osti_20729213,
title = {Magnetic domain walls of relic fermions as Dark Energy},
author = {Yajnik, Urjit A.},
abstractNote = {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.},
doi = {10.1063/1.2149755},
journal = {AIP Conference Proceedings},
number = 1,
volume = 805,
place = {United States},
year = {Fri Dec 02 00:00:00 EST 2005},
month = {Fri Dec 02 00:00:00 EST 2005}
}