2 papers
gr-qc2026
How to obtain a class of emergent universes with a general form of dissipation?
Subhajit Saha
In this paper, we have assumed a flat Friedmann-Lemaitré-Robertson-Walker universe endowed with a general form of dissipation. The source of dissipation is considered to be a bulk…
gr-qc2025
Evolution of primordial black holes in an adiabatic FLRW universe with gravitational particle creation
Subhajit Saha, Abdulla Al Mamon, Somnath Saha
We study the evolution of primordial black holes (PBHs) in an adiabatic FLRW universe with dissipation due to bulk viscosity which is considered to be in the form of gravitational…