|Statement||edited by R. Dijkgraaf ... [et al.].|
|Series||Nuclear physics. B, Proceedings, supplements -- 55B., Nuclear physics -- vol. 55B.|
|LC Classifications||QC794.6.S85 T75 1996|
|The Physical Object|
|Pagination||viii, 253 p. :|
|Number of Pages||253|
Feb 01, · This book takes a pedagogical approach to explaining quantum gravity, supersymmetry and string theory in a coherent way. It is aimed at graduate students and researchers in quantum field theory and high-energy physics. The first part of the book introduces quantum gravity, without requiring previous knowledge of general relativity (GR).5/5(6). Quantum gravity (QG) is a field of theoretical physics that seeks to describe gravity according to the principles of quantum mechanics, and where quantum effects cannot be ignored, such as near compact astrophysical objects where the effects of gravity are strong.. The current understanding of gravity is based on Albert Einstein's general theory of relativity, which is formulated within the. The gauge symmetry is exact in this formulation because it's what removes the unphysical polarizations of the gauge fields. However, string theory is not a local quantum field theory and the gauge symmetry isn't a fundamental assumption in string theory – it and the corresponding polarizations of the gauge bosons are derived from something. Dec 17, · When it comes to the question of a quantum theory of gravity, it's often said that string theory is the only game in town. These four alternatives might cause a rethink of happylifekennel.com: Starts With A Bang.
Get this from a library! String theory, gauge theory and quantum gravity: proceedings of the Trieste Spring School and Workshop, ICTP, Trieste, Italy, March, [R Dijkgraaf;]. Jan 12, · Loop quantum gravity, by contrast, is concerned less with the matter that inhabits space-time than with the quantum properties of space-time itself. In loop quantum gravity, or LQG, space-time is a network. The smooth background of Einstein’s theory of gravity is replaced by nodes and links to which quantum properties are assigned. Loop quantum gravity is one of these, and is the most popular alternative to string theory as a theory of quantum gravity. The initial five chapters of the book motivate the need for quantum gravity and also phrase the theories of general relativity and relativistic quantum physics in a language that will be used to formulate the theory of loop Cited by: May 06, · Loop quantum gravity: Loop quantum gravity is a canonical quantization approach for Hamiltonian formulation of Einstein's general theory of relativity. Abhay Ashtekar on reformulated Einstein's general relativity in a way that facilitated to.
Reason 2. String theory may be the theory of quantum gravity With broad brush, string theory looks like an extremely good candidate to describe the real world. At low-energies it naturally gives rise to general relativity, gauge theories. “Introduction to Quantum Field Theory” were the most diﬃcult and advanced text-books available, and I always feared what a quantum ﬁeld theory book which was not introductory would look like. There is now a standard reference on relativistic string theory by . In addition, gravity can be written as a gauge theory, which means that there should exist a gauge boson that mediates gravity. The name for this theoretical gauge boson is the graviton. (The discovery of the graviton in the equations of string theory led to its development as a theory of quantum gravity.). An Introduction to String Theory Light-Cone Gauge Quantization of the Bosonic String 71 Mass-Shell Condition (Open Bosonic String) 74 Mass Spectrum (Open Bosonic String) 75 a complete theory of quantum gravity. The sad part about this is that all the really.