Speaker
Kosar Asadi
(Institute for Research in Fundamental Sciences (IPM))
Description
We study the helical magnetic fields during an inflationary period, which
is the result of the tachyonic growth of the gauge field. We consider double inflation
model and solve the electromagnetic dynamics. We find that magnetic fields with
amplitude 𝐵 ≈ 10−23 𝐺 at present can be generated, which can be considered as
magnetic seed for the magnetic field observed in galaxies.
Author
Kosar Asadi
(Institute for Research in Fundamental Sciences (IPM))
