𝔖 Bobbio Scriptorium
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Extended thermodynamics in the early Universe

✍ Scribed by B. Lukács; K. Martinás; T. Pacher

Publisher
John Wiley and Sons
Year
1986
Tongue
English
Weight
1002 KB
Volume
307
Category
Article
ISSN
0004-6337

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✦ Synopsis

I t is a geiicrsl belief that iri some early stages of the evolutiou of the Uiiiversc unequilibriuni situations played importatit role. In order to iiicorporatc sonic deviations froin tlicrmal equilibrium into thc description of the cvolution. lierc an extension of the tliermodynamic formalism is given, wherc, using the notion of ekaentropy, new tcrms are introduced into the Gibbs-Duheln relation for reprcsenting the deviation. Two situations are investigated in simplified modcls : the primordial tliermalisation in the syminctric phase of GUT, and the development of a nonthcrmal distribution for massive neutrinos.

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