Download or read book Quantum Gravity and Cosmology Based on Conformal Field Theory written by Ken-ji Hamada and published by Cambridge Scholars Publishing. This book was released on 2019-01-18 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.