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Search: authors:"Emil Martinec"

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M-theory superstrata and the MSW string

The low-energy description of wrapped M5 branes in compactifications of M-theory on a Calabi-Yau threefold times a circle is given by a conformal field theory studied by Maldacena, Strominger and Witten and known as the MSW CFT. Taking the threefold to be \( {\mathbb{T}}_6 \) or \( \mathrm{K}3\times {\mathbb{T}}^2 \), we construct a map between a sub-sector of this CFT and a sub...

Momentum fractionation on superstrata

Superstrata are bound states in string theory that carry D1, D5, and momentum charges, and whose supergravity descriptions are parameterized by arbitrary functions of (at least) two variables. In the D1-D5 CFT, typical three-charge states reside in high-degree twisted sectors, and their momentum charge is carried by modes that individually have fractional momentum. Understanding...