Chiral fermions and torsion in the early Universe

Dolan, Brian P. (2010) Chiral fermions and torsion in the early Universe. Classical and Quantum Gravity, 27 (9). pp. 1-5. ISSN 0264-9381 (Unpublished)

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Torsion arising from fermionic matter in the Einstein-Cartan formulation of general relativity is considered in the context of Robertson-Walker geometries and the early Universe. An ambiguity in the way torsion arising from hot fermionic matter in chiral models should be implemented is highlighted and discussed. In one interpretation, chemical potentials in chiral models can contribute to the Fkiedmann equation and give a negative contribution to the energy density.

Item Type: Article
Additional Information: Pre print version of article
Keywords: torsion; chiral fermions; early Universe; Einstein-Cartan theory; relativity; Robertson-Walker geometries;
Academic Unit: Faculty of Science and Engineering > Mathematical Physics
Item ID: 2458
Identification Number: 10.1088/0264-9381/27/9/095010
Depositing User: Dr. Brian Dolan
Date Deposited: 02 Mar 2011 17:31
Journal or Publication Title: Classical and Quantum Gravity
Publisher: Institute of Physics
Refereed: No

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