71 citations · 257 across the 15 of their papers we have counts for
15 papers
Non-canonical Higgs inflation
Pooja Pareek, Akhilesh Nautiyal
The large value of non-minimal coupling constant required to satisfy CMB observations in Higgs inflation violates unitarity. In this work we study Higgs-inflation with non-cano…
Observational constraints on power law Starobinsky inflation
Saisandri Saini, Akhilesh Nautiyal
In this work we revisit power law, , inflation to find the deviations from inflation allowed by current CMB and LSS observations. We compute the power spect…
Reheating constraints on K-inflation
Pooja Pareek, Akhilesh Nautiyal
In this work we revisit constraints on K-inflation with DBI kinetic term and power-law kinetic term from reheating. For DBI kinetic term we choose monomial potentials, $V\propto ϕ^…
Constraints on electromagnetic form factors of sub-GeV dark matter from the Cosmic Microwave Background anisotropy
Gaetano Lambiase, Subhendra Mohanty, Akhilesh Nautiyal +1
We consider dark matter which have non-zero electromagnetic form factors like electric/magnetic dipole moments and anapole moment for fermionic dark matter and Rayleigh form factor…
Reheating constraints on Tachyon Inflation
Akhilesh Nautiyal
Tachyon inflation is one of the most attractive models of noncannonical inflation motivated by string theory. In this work we revisit the constraints on tachyon inflation with inve…
A New f(R) Model in the Light of Local Gravity Test and Late-time Cosmology
Akhilesh Nautiyal, Sukanta Panda, Avani Patel
We propose a new model of f(R) gravity containing Arctan function in the lagrangian. We show here that this model satisfies fifth force constraint unlike a similar model in Kruglov…