Primordial Magnetic fields and the Gravitational waves

by Dr Arun Kumar Pandey (Physical Research Laboratory, Ahmedabad)

Tuesday 30 Apr 2019, 13:00 → 14:00 Asia/Kolkata

A304

It is known that cosmic magnetic field, if present, can generate anisotropic stress in the plasma and hence can act as a source of gravitational waves. These cosmic magnetic fields can be generated at very high temperature, much above electroweak scale, due to the gravitational anomaly in presence of the chiral asymmetry. The chiral asymmetry leads to instability in the plasma which ultimately generate the magnetic fields. In the present talk, I will discuss the generation of gravitational waves, sourced by the magnetic field created due to the gravitational anomaly.

Poster arun.pdf