Gravitational Waves from a Quantum Field Theory Perspective

This book treats the subject of gravitational waves (GWs) production in binary stars or black-holes and in the early universe, using tools of quantum field theory which are familiar to graduate students and researchers in particle physics. A special focus is given to the generation of templates of gravitational wave signals from Feynman diagram calculations of transition amplitudes, which interests active researchers in GWs. The book presents field theory concepts, like supersymmetry realized in spinning binaries and soft-graviton theorems, that can have practical applications in novel GW signals, like the memory effect. The book also aims at specialists in both GWs and particle physics addressing cosmological models of phase transition and inflation that can be tested in observations at terrestrial and space based interferometers, pulsar timing arrays, and the cosmic microwave anisotropy observations.

Subhendra Mohanty obtained his PhD from University of Wisconsin, Madison, USA in 1989. After that he held postdoctoral positions at CERN and ICTP. He joined the Physical Research Laboratory in Ahmedabad (India) in 1994, where he is currently a Professor. He spent a sabbatical year in Universita Autonoma of Barcelona in 2007. His fields of investigation are particle physics and cosmology. He was elected as a Fellow of National Academy of Sciences India in 2021.He published 100+ papers in international peer-reviewed journals and has been involved in teaching courses for graduate students and young researchers. He already published in Lecture Notes in Physics the volume Astroparticle Physics and Cosmology: Perspectives in the Multimessenger Era (Springer, 2020).