activity
20192026
most citedProof of the Classical Soft Graviton Theorem in D=4

5 citations · 6 across the 6 of their papers we have counts for

collaborators

7 papers

hep-th2026

Logarithmic Soft Photon Theorem and Waveform Tails in Higher Dimensions

Biswajit Sahoo

We derive the leading logarithmic soft-photon theorem in spacetime dimensions and its classical radiative counterpart. A direct one-loop analysis in massive scalar quantum el…

hep-th2026

Flowing with Displacements and Tilts: Surface Operators in Models

Jake Belton, Nadav Drukker, Biswajit Sahoo

Defect conformal field theories have special operators of protected dimension known as displacements and tilts. They arise due to the breaking of global symmetries by the defect an…

hep-th2026

All loop soft photon theorems and higher spin currents on the celestial sphere

Shamik Banerjee, Raju Mandal, Biswajit Sahoo

Soft factorization theorems can be reinterpreted as Ward identities for (asymptotic) symmetries of scattering amplitudes in asymptotically flat space-time. In this paper we study t…

hep-th2025

Magnetised Bounds for Conformal Field Theories

Christopher P. Herzog, William H. Pannell, Biswajit Sahoo +1

Aspects of parity-preserving, charge-conjugation-invariant, three-dimensional conformal field theories (CFTs) with a global symmetry in the presence of a background magnetic…

hep-th2024★ 1 cited

Correlation Functions and Trace Anomalies in Weakly Relevant Flows

Denis Karateev, Biswajit Sahoo

We study abstract weakly relevant flows in a general number of dimensions. They arguably provide the simplest example of renormalization group (RG) flows between two non-trivial fi…

hep-th2023

Trace Anomalies and the Graviton-Dilaton Amplitude

Denis Karateev, Zohar Komargodski, João Penedones +1

We consider 3+1 dimensional Quantum Field Theories (QFTs) coupled to the dilaton and the graviton. We show that the graviton-dilaton scattering amplitude receives a universal contr…

hep-th2019★ 5 cited

Proof of the Classical Soft Graviton Theorem in D=4

Arnab Priya Saha, Biswajit Sahoo, Ashoke Sen

Classical subleading soft graviton theorem in four space-time dimensions determines the gravitational wave-form at late and early retarded time, generated during a scattering or ex…