5 papers
Cosmological singularities, entanglement and quantum extremal surfaces
A. Manu, K. Narayan, Partha Paul
We study aspects of entanglement and extremal surfaces in various families of spacetimes exhibiting cosmological, Big-Crunch, singularities, in particular isotropic Kasner. T…
Cosmological singularities and 2-dimensional dilaton gravity
Ritabrata Bhattacharya, K. Narayan, Partha Paul
We study Big-Bang or -Crunch cosmological singularities in 2-dimensional dilaton-gravity-scalar theories, in general obtained by dimensional reduction of higher dimensional theorie…
Conformal properties of soft-operators - 1 : Use of null-states
Shamik Banerjee, Pranjal Pandey, Partha Paul
Soft-operators, loosely speaking, are operators which create or annihilate zero energy massless particles on the celestial sphere in Minkowski space. The Lorentz group acts on the…
On Late Time Tails in an Extreme Reissner-Nordström Black Hole: Frequency Domain Analysis
Srijit Bhattacharjee, Bidisha Chakrabarty, David D. K. Chow +2
In this brief note, we revisit the study of the leading order late time decay tails of massless scalar perturbations outside an extreme Reissner-Nordström black hole. Previous auth…
Linearized Einstein's Equation around pure BTZ from Entanglement Thermodynamics
Partha Paul, Pratik Roy
It is known that the linearized Einstein's equation around the pure can be obtained from the constraint , known as the first law of entanglement, on…