249 citations · 502 across the 5 of their papers we have counts for
5 papers
Nongeometry, Duality Twists, and the Worldsheet
Alex Flournoy, Brook Williams
In this paper, we use orbifold methods to construct nongeometric backgrounds, and argue that they correspond to the spacetimes discussed in \cite{dh,wwf}. More precisely, we make e…
Constructing Nongeometric Vacua in String Theory
Alex Flournoy, Brian Wecht, Brook Williams
In this paper we investigate compactifications of the type II and heterotic string on four-dimensional spaces with nongeometric monodromies. We explicitly construct backgrounds whi…
The Fall of Stringy de Sitter
Andrew R. Frey, Matthew Lippert, Brook Williams
Kachru, Kallosh, Linde, & Trivedi recently constructed a four-dimensional de Sitter compactification of IIB string theory, which they showed to be metastable in agreement with gene…
Geometric Constructions of Nongeometric String Theories
Simeon Hellerman, John McGreevy, Brook Williams
We advocate a framework for constructing perturbative closed string compactifications which do not have large-radius limits. The idea is to augment the class of vacua which can be…
D-branes and Cosmological Singularities
Brook Williams
The motion of a test Dq-brane in a Dp-brane background is studied. The induced metric on the test brane is then interpreted as the cosmology of the test brane universe. One is then…