Can we detect a supertranslated black hole?

S Sarkar, S Kumar, S Bhattacharjee - Physical Review D, 2022 - APS
We attempt to address the question of whether standard tests of general relativity can detect
the presence of a black hole carrying a supertranslation field. In this regard, we study the …

Memory effect and BMS-like symmetries for impulsive gravitational waves

S Bhattacharjee, S Kumar, A Bhattacharyya - Physical Review D, 2019 - APS
Cataclysmic astrophysical phenomena can produce impulsive gravitational waves that can
possibly be detected by the advanced versions of present-day detectors in the future. The …

Memory effect and BMS symmetries for extreme black holes

S Bhattacharjee, S Kumar - Physical Review D, 2020 - APS
We study horizon shells and soldering freedom for extreme black holes and how
supertranslation-like Bondi-Metzner-Sachs (BMS) symmetries appear as soldering …

Horizon hair from inversion symmetry

K Fernandes, D Ghosh, A Virmani - Classical and Quantum …, 2021 - iopscience.iop.org
Abstract The extreme Reissner–Nordström (ERN) solution has a discrete conformal isometry
that maps the future event horizon to future null infinity and vice versa, the Couch–Torrence …

Displacement memory effect near the horizon of black holes

S Bhattacharjee, S Kumar, A Bhattacharyya - Journal of High Energy …, 2021 - Springer
A bstract We study the displacement memory effect and its connection with the extended-
BMS symmetries near the horizon of black holes. We show there is a permanent shift in the …

Can the Near-Horizon Black Hole Memory be detected through Binary Inspirals?

SA Bhat, S Bhattacharjee, SJ Kapadia - arXiv preprint arXiv:2406.15604, 2024 - arxiv.org
The memory effect, in the context of gravitational-waves (GWs), manifests itself in the
permanent relative displacement of test masses when they encounter the GWs. A number of …

Gravitational Memory Effect for Near-Horizon Asymptotic Symmetries

S Kumar - arXiv preprint arXiv:2203.08983, 2022 - arxiv.org
Gravitational memory effect has emerged as a new window and opened up several
intriguing avenues in the field of gravitational wave astronomy together with its inter …

[图书][B] The Art of Gluing Space-Time Manifolds: Methods and Applications

S Khakshournia, R Mansouri - 2023 - books.google.com
This concise book reviews methods used for gluing space-time manifolds together. It is
therefore relevant to theorists working on branes, walls, domain walls, concepts frequently …

Displacement memory and BMS symmetries

S Kumar - The Sixteenth Marcel Grossmann Meeting on Recent …, 2023 - World Scientific
This article reviews one of the most intriguing properties of black hole spacetimes known in
the literature-gravitational memory effect, and its connection with asymptotic symmetries …

Supertranslation transition between quasilocal black holes

A Ghosh, A Ghosh, P Nanda - Physical Review D, 2020 - APS
We revisit the symmetries of an isolated horizon (IH), exploiting some freedom in the choice
of intrinsic data. The supertranslations are realized as additional symmetries. Furthermore, it …