Quantum Gravity and Cosmology Based on Conformal Field Theory
What is the world beyond the Planck scale that provides the minimum unit of the universe? The goal of quantum gravity is to reveal physical laws in such a world. There, quantum fluctuations of gravity become large, and what is called a background-free world where the concept of time and distance is lost shall be realized. The renormalizable quantum gravity introduced in this book offers a theory in which such a world is described by a certain conformal field theory and a deviation from there is handled as a perturbation. This is the state-of-the-art of modern physics that will help in understanding the history of the universe, from its birth to the present.
Ken-ji Hamada is an Associate Professor of Theoretical Physics at the High Energy Accelerator Research Organization (KEK), Japan, having received his PhD in Physics from Hiroshima University in 1989. As a graduate student and postdoctoral fellow, he mainly studied string theory, including conducting research on two-dimensional conformal field theory and two-dimensional quantum gravity. He then proposed a new approach to renormalizable quantum gravity based on conformal field theory.
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