High Energy Theory Seminar
3 December 2010
Liam McAllister (Cornell University)
Supergravity Solutions for
Seven-branes
Abstract:
Nonperturbative effects on D7-branes play a key role in flux
compactifications of type IIB string theory, but are usually
described only in the four-dimensional effective theory, precluding
ten-dimensional analysis of the corresponding vacua. I will first
argue that gaugino condensation on D7-branes sources three-form flux in
ten dimensions. I will then present new supersymmetric solutions
of ten-dimensional supergravity that encode gaugino condensation on
(p,q) seven-branes. Applications
of these results to
four-dimensional cosmological model-building will be discussed.
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