4 papers
Forecasting Constraints on Non-Thermal Light Massive Relics from Future CMB Experiments (CMB-S4/Simons Observatory)
Arka Banerjee, Abhik Bhattacharjee, Subinoy Das +2
In this work we present Fisher forecasts on \textit{non-thermal LiMR} models for a CMB Stage IV-like experiment and the Simons Observatory -- particularly focusing on a model of in…
Time Non-locality in Dark Matter and LSS
Arhum Ansari, Arka Banerjee, Sachin Jain +1
We explore the intriguing phenomenon of time non-locality in the evolution of dark matter and Large Scale Structure (LSS). Recently in\,\cite{Donath:2023sav}, it was shown that tim…
Hint of dark matter-dark energy interaction in DESI DR2 and current cosmological dataset?
Amlan Chakraborty, Tulip Ray, Subinoy Das +2
We present new constraints on an interacting dark matter-dark energy scenario motivated by string compactification, where a scalar field adiabatically tracks the minimum of an effe…
Bootstrapping LSS perturbation theory beyond third order
Arhum Ansari, Arka Banerjee, Sachin Jain +1
Bootstrap techniques relying on the constraints imposed by Extended Galilean Invariance (EGI), have proved to be very useful in the context of perturbation theory of the Large Scal…