[Seminar] "Classical soft theorem in four dimension" by Dr. Arnab Priya Saha

Quantum Gravity Unit (Neiman Unit) would like to invite you to a seminar by Dr. Arnab Priya Saha from Harish-Chandra Research Institute, India

Title: "Classical soft theorem in four dimension"

Abstract:
Due to infrared divergence of S-matrix, soft graviton theorem has logarithmic terms at subleading order in the expansion of soft momentum in four dimension. In a classical scattering process the subleading soft graviton factor is related to the tail of gravitational waveform at late and early retarded time. We analyze  the low energy radiation emitted during classical scattering to prove the subleading soft graviton theorem. We also extend the result to electromagnetic waveform produced during scattering of charged particles.