Journal Article


Brian P. Dolan



energy bang bang chiral models ambiguity density chiral contribution general relativity

Chiral fermions and torsion in the early Universe (2009)

Abstract 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, the non-zero torsion present in chiral models gives a negative contribution to the energy density which ameliorates the Big Bang singularity or even, in extreme cases, eliminates it completely giving bounce solutions for early Universe cosmology.
Collections Ireland -> DAIR -> Type = Article
Ireland -> DAIR -> Status = Published

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Brian P. Dolan

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Brian P. Dolan
Maynooth University
Total Publications: 120