20 citations · 20 across the 1 of their papers we have counts for
5 papers
Subsubleading soft graviton symmetry and MHV graviton scattering amplitudes
Shamik Banerjee, Sudip Ghosh, Sai Satyam Samal
In arXiv:2008.04330 it was shown that supertranslation and current algebra symmetries, corresponding to leading and subleading soft graviton theorems,…
MHV Gluon Scattering Amplitudes from Celestial Current Algebras
Shamik Banerjee, Sudip Ghosh
We show that the Mellin transform of an -point tree level MHV gluon scattering amplitude, also known as the celestial amplitude in pure Yang-Mills theory, satisfies a system of…
BMS Symmetry of Celestial OPE
Shamik Banerjee, Sudip Ghosh, Riccardo Gonzo
In this paper we study the BMS symmetry of the celestial OPE of two positive helicity gravitons in Einstein theory in four dimensions. The celestial OPE is obtained by Mellin trans…
Modified celestial amplitude in Einstein gravity
Shamik Banerjee, Sudip Ghosh, Pranjal Pandey +1
In this paper we evaluate the modified celestial amplitude for gravitons and gluons, as defined in arXiv:1801.10171[hep-th]. We find that the modified (tree) amplitude is finite fo…
Loss of locality in gravitational correlators with a large number of insertions
Sudip Ghosh, Suvrat Raju
We review lessons from the AdS/CFT correspondence that indicate that the emergence of locality in quantum gravity is contingent on considering observables with a small number of in…