Book

Description

Loop quantum gravity theory, the English alias loop gravity, quantum geometry; the quantum gravity theory developed by Abbe Ashitika, Lee Smalling, Carlo Rowley, etc., is the same as string theory It is the most successful theory of quantizing gravity today.The theory of using the perturbation theory of quantum field theory to realize the quantization of the theory of gravity cannot be renormalized. If you start with general relativity while advocating that space-time has only four dimensions, you can turn general relativity into a theory similar to gauge field theory. The basic regular variable is the Ashitika-Barbero connection instead of the metric tensor, and then the connection is defined The translation operator and the flux variable are the basic variables to achieve quantization.This book points out that when some boundary conditions are preset, bosons can produce Bose condensation without an energy layer.