17–18 Nov 2021
Asia/Tehran timezone

The generation of matter–antimatter asymmetries and hypermagnetic fields by the chiral vortical effect of transient fluctuations

18 Nov 2021, 13:00
1h

Speaker

S. Rostam Zadeh

Description

Generation of matter-antimatter asymmetry and large-scale magnetic
fields in the Universe are two seemingly unrelated problems in particle physics
and cosmology which are highly intertwined in the symmetric phase of the early
Universe, due to the Abelian anomalous effects. The chiral vortical effect (CVE)
is the generation of the electric current parallel to the vorticity field in the plasma.
We show that due to the temperature-dependent chiral vortical effect, small over-
lapping transient fluctuations in the vorticity field in the plasma and temperature
of matter degrees of freedom can lead to the generation of strong hypermagnetic
fields and matter-antimatter asymmetries, all starting from zero initial values.

Authors

Presentation materials