Classical and Quantum Aspects of Gravity in Relation to the Emergent Paradigm
This thesis explores the connection between gravity and thermodynamics and provides a unification scheme that opens up new directions of exploration. Further elaborating on the Hawking effect and the possibility of singularity avoidance, the author not only discusses the information loss paradox at a broader level but also provides a possible solution to it. As the final frontier, it describes some novel effects arising from the microscopic structure of spacetime.
Taken as a whole, the thesis addresses three major research areas in gravitational physics: it starts with classical gravity, proceeds to the black hole information loss paradox, and closes with Planck scale physics. The thesis is written in a lucid and pedagogical style, with an introduction accessible to researchers from other branches of physics and a discussion presenting open questions and future directions, which will benefit and hopefully inspire next-generation researchers.
Boundary Terms of The Einstein-Hilbert Action
This a chapter written for the book ``Gravity and the Quantum", published by Springer. The focus of this article being various properties of the Einstein-Hilbert action which are not usually discussed in the literature. The article also fills a gap by providing the most general variation associated with null surfaces, a topic of much discussion in recent times.
This book provides a compilation of in-depth articles and reviews on key topics within gravitation, cosmology and related issues. It is a celebratory volume dedicated to Prof. Thanu Padmanabhan ("Paddy"), the renowned relativist and cosmologist from IUCAA, India, on the occasion of his 60th birthday.