40 citations · 295 across the 22 of their papers we have counts for
3 papers · 1 filter
Evolution of quantum field, particle content and classicality in the three stage universe
Suprit Singh, Sujoy Kumar Modak, T. Padmanabhan
We study the evolution of a quantum scalar field in a toy universe which has three stages of evolution, viz., (i) an early (inflationary) de Sitter phase (ii) radiation dominated p…
New perspectives on Hawking radiation
Matteo Smerlak, Suprit Singh
We develop an adiabatic formalism to study the Hawking phenomenon from the perspective of Unruh-DeWitt detectors moving along non-stationary, non-asymptotic trajectories. When appl…
Quantum field theory in de Sitter and quasi-de Sitter spacetimes: Revisited
Suprit Singh, Chandrima Ganguly, T. Padmanabhan
It is possible to associate temperatures with the non-extremal horizons of a large class of spherically symmetric spacetimes using periodicity in the Euclidean sector and this proc…