3 papers
astro-ph.CO2026
Analyzing Parameter Range and the Duration of Reheating in the Polynomial -attractor Models using CMB Observations
Ajay Atwal, Apurba Samanta
Cosmological -attractor models are renowned for their universal predictions for inflationary observables, largely independent of the detailed form of the inflaton potential. In…
gr-qc2026
Constraining inflationary models via de-Sitterization of Bianchi Cosmologies
Apurba Samanta, Rahul Kothari
Our Universe is isotropic and homogeneous when we observe it on Mpc length scales. It is desirable that present state of the Universe has no dependence on its initial geo…
astro-ph.CO2026
Constraining Scale-Dependent Growth in Gravity with Future 21 cm Surveys
Apurba Samanta, Bhuwan Joshi, Jess Worsley +2
Recent observations, particularly from DESI, have provided intriguing hints of dynamical behaviour in late-time dark energy. Modified gravity theories offer a compelling framework…