32 citations · 188 across the 17 of their papers we have counts for
3 papers · 1 filter
Primordial Helical Magnetic Fields from Inflation?
Alireza Talebian, Amin Nassiri-Rad, Hassan Firouzjahi
We revisit the mechanism of helical magnetogenesis during inflation with a parity violating interaction using the formalism of stochastic inflation. One of the polarization of the…
Dark Matter from Entropy Perturbations in Curved Field Space
Hassan Firouzjahi, Mohammad Ali Gorji, Shinji Mukohyama +1
The accumulated energy density of the excited entropy modes in multiple field inflationary scenarios can play the role of dark matter. In the usual case of a flat field space witho…
Multi-field Mimetic Gravity
Seyed Ali Hosseini Mansoori, Alireza Talebian, Zahra Molaee +1
In this paper, we extend the mimetic gravity to the multi-field setup with a curved field space manifold. The multi-field mimetic scenario is realized via the singular limit of the…