11 papers
Krylov complexity and the growth of the black hole interior in 3D gravity
Arpan Bhattacharyya, Sounak Pal, Juan F. Pedraza
We investigate the growth of the black hole interior in three-dimensional gravity from the boundary theory. For the two-sided BTZ black hole, we propose a boundary reconstruction o…
Observables from classical black hole scattering in Scalar-Tensor theory of gravity from worldline quantum field theory
Arpan Bhattacharyya, Debodirna Ghosh, Saptaswa Ghosh +1
In this article, we compute the two observables, impulse and waveform, in a black hole scattering event for the Scalar-Tensor theory of gravity with a generic scalar potential usin…
Heterotic Footprints in Classical Gravity: PM dynamics from On-Shell soft amplitudes at one loop
Arpan Bhattacharyya, Saptaswa Ghosh, Ankit Mishra +1
We study classical scattering of charged black holes in Einstein-Maxwell-Dilaton (EMD) theory. Working in the classical (Post-Minkowskian) regime, we extract the conservative two-b…
Comparative Study of Indicators of Chaos in the Closed and Open Dicke Model
Prasad Pawar, Arpan Bhattacharyya, B. Prasanna Venkatesh
The Dicke model, renowned for its superradiant quantum phase transition, also exhibits a transition from regular to chaotic dynamics. In this work, we provide a systematic, compara…
Finite cutoff JT gravity: Baby universes, Matrix dual, and (Krylov) Complexity
Arpan Bhattacharyya, Saptaswa Ghosh, Sounak Pal +1
In this paper, as an application of the `Complexity = Volume' proposal, we calculate the growth of the interior of a black hole at late times for finite cutoff JT gravity. Due to t…
On the resolution of categorical symmetries in (Non-) Unitary Rational CFTs
Arpan Bhattacharyya, Saptaswa Ghosh, Sounak Pal +1
We explore several aspects of the categorical symmetry-resolved entanglement entropy (SREE) in two-dimensional Rational Conformal Field Theories (RCFTs) and express it directly in…