Archit Vidyarthi

activity

20212026

most citedObservable Primordial Gravitational Waves from Non-minimally Coupled

R^{2}

Palatini Modified Gravity

14 citations · 44 across the 12 of their papers we have counts for

collaborators

Showing 2022Show all

2 papers · 1 filter

hep-th2022★ 2 cited

Local momentum space: Scalar field and gravity

Sukanta Panda, Abbas Altafhussain Tinwala, Archit Vidyarthi

We use the local momentum space technique to obtain an expansion of the Feynman propagators for scalar field and graviton up to first order in the background curvature. The express…

gr-qc2022★ 12 cited

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- $R^{2}$ inflation models by including an additional $R^{2} ∣Φ ∣^{2}$ -type term. Due to certain…