34 citations · 156 across the 9 of their papers we have counts for
9 papers
Bootstrapping spinning two body problem in dynamical Chern-Simons gravity using worldline QFT
Arpan Bhattacharyya, Debodirna Ghosh, Saptaswa Ghosh +1
In this paper, we compute the WQFT partition function, specifically the eikonal phase in a black hole scattering event in the dynamical Chern-Simons theory, using the techniques of…
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…
Operator growth and Krylov Complexity in Bose-Hubbard Model
Arpan Bhattacharyya, Debodirna Ghosh, Poulami Nandi
We study Krylov complexity of a one-dimensional Bosonic system, the celebrated Bose-Hubbard Model. The Bose-Hubbard Hamiltonian consists of interacting bosons on a lattice, describ…
Classical spinning soft factors from gauge theory amplitudes
Manu A., Debodirna Ghosh
In this short note, we analyse low energy electromagnetic radiation for spinning particles using the KMOC formalism and the quantum soft theorems. In particular, we study low energ…
Supertranslations at Timelike Infinity
Sumanta Chakraborty, Debodirna Ghosh, Sk Jahanur Hoque +2
We propose a definition of asymptotic flatness at timelike infinity in four spacetime dimensions. We present a detailed study of the asymptotic equations of motion and the action o…
Spin Dependent Gravitational Tail Memory in
Debodirna Ghosh, Biswajit Sahoo
We derive the leading spin-dependent gravitational tail memory, which appears at the second post-Minkowskian (2 PM) order and behaves as for large retarded time . This…
Horizon Hair from Inversion Symmetry
Karan Fernandes, Debodirna Ghosh, Amitabh Virmani
The extreme Reissner-Nordström solution has a discrete conformal isometry that maps the future event horizon to future null infinity and vice versa, the Couch-Torrence inversion is…
Soft Radiation from Scattering Amplitudes Revisited
Manu A, Debodirna Ghosh, Alok Laddha +1
We apply the recently developed formalism by Kosower, Maybee and O'Connell (KMO) to analyse the soft electromagnetic and soft gravitational radiation emitted by particles without s…
Quasinormal modes of supersymmetric microstate geometries from the D1-D5 CFT
Bidisha Chakrabarty, Debodirna Ghosh, Amitabh Virmani
We revisit the study of the probe scalar quasinormal modes of a class of three-charge supersymmetric microstate geometries. We compute the real and imaginary parts of the quasinorm…