Quantum Gravity at the Turn of the Millennium
General Relativity and Quantum Cosmology
2007-05-23 v2 High Energy Physics - Theory
Abstract
A very brief review is given of the current state of research in quantum gravity. Over the past fifteen years, two approaches have emerged as the most promising paths to a quantum theory of gravity: string theory and quantum geometry. I will discuss the main achievements and open problems of each of these approaches, and compare their strengths and weaknesses.
Cite
@article{arxiv.gr-qc/0011089,
title = {Quantum Gravity at the Turn of the Millennium},
author = {Gary T. Horowitz},
journal= {arXiv preprint arXiv:gr-qc/0011089},
year = {2007}
}
Comments
17 pages, based on talk presented at the Ninth Marcel Grossmann Meeting, Rome, July, 2000; v2: typo corrected