#### Alladi Ramakrishnan Hall

#### Particle temperature and the Chiral Vortical Effect in the early universe

#### Soma Sanyal

##### University of Hyderabad

*We study the effect of hotter or colder particles on the evolution *

of the chiral magnetic field in the early universe. We are

interested in the temperature dependent term in the chiral vortical

effect. There are no changes in the magnetic energy spectrum at

large lengthscales but in the Kolmogorov regime we do find a

difference. Our numerical results show that the Gaussian peak in

the magnetic spectrum becomes negatively skewed. The negatively

skewed peak can be fitted with a beta distribution. Analytically

one can relate the non-Gaussianity of the distribution to the

temperature dependent vorticity term. The vorticity term is

therefore responsible for the beta distribution in the magnetic

spectrum. Since the beta distribution has already been used to model

turbulent dispersion in fluids, hence it seems that the presence of

hotter or colder particles may lead to turbulence in the magnetized

plasma.

Done