Quantum Gravity at the Turn of the Millennium
Abstract
Description
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.
17 pages, based on talk presented at the Ninth Marcel Grossmann Meeting, Rome, July, 2000; v2: typo corrected
17 pages, based on talk presented at the Ninth Marcel Grossmann Meeting, Rome, July, 2000; v2: typo corrected