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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.

Event Type:

Seminar

Collection/Series:

Scientific Area(s):

Speaker(s):

Event Date:

Wednesday, January 16, 2013 - 14:00 to 15:30

Location:

Lazaridis Theatre

©2012 Perimeter Institute for Theoretical Physics