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Author Pandey, Arun Kumar ♦ Bhatt, Jitesh R.
Source IIT Gandhinagar
Content type Text
Publisher Cornell University Library
Language English
Subject Keyword Temperature ♦ Quantum Cosmology ♦ General Relativity
Abstract We reexamine generation of the primordial magnetic fields, at temperature T > 80TeV, by applying a consistent kinetic theory framework which is suitably modified to take the quantum anomaly into account. The modified kinetic equation can reproduce the known quantum field theoretic results upto the leading orders. We show that our results qualitatively matches with the earlier results obtained using heuristic arguments. The modified kinetic theory can give the instabilities responsible for generation of the magnetic field due to chiral imbalance in two distinct regimes: a) when the collisions play a dominant role and b) when the primordial plasma can be regarded as collisionless. We argue that the instability developing in the collisional regime can dominate over the instability in the collisionless regime.
Description This is a Preprint version
Learning Resource Type Article
Publisher Date 2015-07-01