10 citations · 10 across the 3 of their papers we have counts for
3 papers
gr-qc2026
Testing Gravity with DESI DR2 and Strong-Lensing Time Delays
Darshan Kumar, Saibal Ray, Fengge Zhang +3
Symmetric teleparallel gravity provides an alternative description of gravitation in which non-metricity replaces curvature and torsion. Its extension through gravity offers…
astro-ph.CO2025★ 10 cited
Joint Analysis of Constraints on f(R) Parametrization from Recent Cosmological Observations
Darshan Kumar, Praveen Kumar Dhankar, Saibal Ray +1
In this study, we present constraints on the parameters of three well-known gravity models, viz. (i) Hu-Sawicki, (ii) Starobinsky, and (iii) ArcTanh by using a joint analysi…
astro-ph.CO2024
Probing the shape of the primordial curvature power spectrum and the energy scale of reheating with pulsar timing arrays
Lele Fan, Jie Zheng, Fengge Zhang +1
The stochastic gravitational wave background (SGWB) provides a unique opportunity to probe the early Universe, potentially encoding information about the primordial curvature power…