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PIRSA:13010103

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https://pirsa.org/13010103

Einstein's gravity versus String Gravity

Zwiebach, B. (2013). Einstein's gravity versus String Gravity. Perimeter Institute for Theoretical Physics. https://pirsa.org/13010103

Barton Zwiebach Massachusetts Institute of Technology (MIT) - Department of Physics

Talk numberPIRSA:13010103
DOI10.48660/13010103
Source RepositoryPIRSA
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Talk Type Scientific Series
Subject

Abstract

Gravity in string theory is a generalized version of Einstein's theory with some  universal features that call for a reformulation of the key geometrical concepts.  In addition to the metric tensor, for example, string theory contains an antisymmetric tensor and a dilaton that allow for extra symmetries. A new branch of mathematics, Generalized Geometry, suggests a framework that finds a realization in the recent Double Field Theory formulation of string gravity. I will describe the main ideas, the progress, and the mysteries that remain in the search for a proper description of string gravitation.