output
20052026
most citedThe Belle II Physics Book

570 citations

Showing astro-ph.COShow all

8 papers · 1 filter

astro-ph.CO2025

Reheating study of Mexican-Hat-type Potentials

Sudhava Yadav, Akash Yadav, K. K. Venkataratnam

We study reheating in Mexican Hat type potentials, emphasizing the role of the post-inflationary equation-of-state parameter() in shaping observable predi…

astro-ph.CO2025★ 3 cited

Power law -Starobinsky inflation

Saisandri Saini, Akhilesh Nautiyal

In this work we consider a generalization of Starobinsky inflation obtained by combining power law (), and -Starobinsky inflation (-model). The Einstein frame potential…

astro-ph.CO2025★ 8 cited

Quintessential Implications of the presence of AdS in the Dark Energy sector

Purba Mukherjee, Dharmendra Kumar, Anjan A Sen

We explore the implications for an Anti-de Sitter (AdS) vacuum, equivalently a negative cosmological constant (nCC), in the dark energy (DE) sector using current cosmological obser…

astro-ph.CO2024★ 8 cited

Exploring Alternative Cosmologies with the LSST: Simulated Forecasts and Current Observational Constraints

Dharmendra Kumar, Ayan Mitra, Shahnawaz A. Adil +1

In recent years, the Lambda Cold Dark Matter (LCDM) model, which has been pivotal in cosmological studies, has faced significant challenges due to emerging observational and theore…

astro-ph.CO2024★ 9 cited

Reheating constraints on mutated hilltop inflation

Sudhava Yadav, Dhwani Gangal, K. K. Venkataratnam

Future research studies of cosmic microwave background polarization seems likely to provide a more improved upper bound of on the tensor-to-scalar ratio(r). In our wor…

astro-ph.CO2023★ 7 cited

Reheating constraints on modified quadratic chaotic inflation

Sudhava Yadav, Rajesh Goswami, K. K Venkataratnam +1

The Reheating era of inflationary universe can be parameterized by various parameters like reheating temperature \(T_{\text{re}}\), reheating duration \(N_{\text{re}}\) and average…

astro-ph.CO2021★ 12 cited

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^…

astro-ph.CO2018★ 19 cited

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…