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A new twist on toroidal string compactifications

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If you have a question about this talk, please contact Dr. Carl Turner.

We will discuss toroidal compactifications of the bosonic and heterotic strings, focusing on the phenomenon of symmetry enhancement arising at self-dual points in moduli space. I will present the effective action describing the low energy effective theory close to the points of enhancement, obtained from string theory scattering amplitudes; show how symmetry breaking arises naturally as a Higgs mechanism, and show that this action can be obtained from a suitable (twisted) Sherk-Schwarz reduction of double field theory.

This talk is part of the Quantum Fields and Strings Seminars series.

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