14 citations · 44 across the 12 of their papers we have counts for
6 papers · 1 filter
Primordial Black Holes: A Review of Formation and Evolution
S. Shankaranarayanan, Soumya Bhattacharya, Archit Vidyarthi
Primordial Black Holes (PBHs) have emerged as a leading non-particulate candidate for dark matter and a unique cosmological probe, a paradigm shift accelerated by the detection of…
Phantom Menace in general Palatini theories
Rahul Thakur, Abhijith Ajith, Sukanta Panda +1
We study general theories in Palatini formalism and attempt to constrain the behavior of ones that could support both inflationary and late-time expansion era in a unified…
Eff-ACT-ive Starobinsky pre-inflation
Abhijith Ajith, Hardik Jitendra Kuralkar, Sukanta Panda +1
We consider quantum corrections to a recently obtained perturbative form of Starobinsky model to extract information about the initial conditions of the universe leading to cosmolo…
Testing the Starobinsky model of inflation with resonant cavities
Subhendra Mohanty, Sukanta Panda, Archit Vidyarthi
We show that the Starobinsky inflation model based on gravity has a special feature that it provides a unique scalaron-two-graviton vertex with a coupling proportional to $1/…
Ghost Free Theory in Unitary Gauge: A New Candidate
Pawan Joshi, Sukanta Panda, Archit Vidyarthi
We propose an algebraic analysis using a 3+1 decomposition to identify conditions for a clever cancellation of the higher derivatives, which plagued the theory with Ostrogradsky gh…
Ultraviolet Unitarity Violations in Non-minimally Coupled Scalar-Starobinsky Inflation
Sukanta Panda, Abbas Altafhussain Tinwala, Archit Vidyarthi
We perform the calculation for tree-level ultraviolet unitarity violation scales for scalar- inflation models by including an additional -type term. Due to certain…