Outputs (197)

Non-geometric backgrounds, doubled geometry and generalised T-duality (2009)
Journal Article
Hull, C. M., & Reid-Edwards, R. A. (2009). Non-geometric backgrounds, doubled geometry and generalised T-duality. Journal of High Energy Physics, 2009(09), Article 014. https://doi.org/10.1088/1126-6708/2009/09/014

String backgrounds with a local torus fibration such as T-folds are naturally formulated in a doubled formalism in which the torus fibres are doubled to include dual coordinates conjugate to winding number. Here we formulate and explore a generalisat... Read More about Non-geometric backgrounds, doubled geometry and generalised T-duality.

Flux compactifications of string theory on twisted tori (2009)
Journal Article
Hull, C., & Reid-Edwards, R. (2009). Flux compactifications of string theory on twisted tori. Fortschritte der Physik / Progress of Physics, 57(9), 862-894. https://doi.org/10.1002/prop.200900076

Global aspects of Scherk‐Schwarz dimensional reduction are discussed and it is shown that it can usually be viewed as arising from a compactification on the compact space obtained by identifying a (possibly non‐compact) group manifold 𝒢 under a discr... Read More about Flux compactifications of string theory on twisted tori.

D-branes and doubled geometry (2009)
Journal Article
Albertsson, C., Kimura, T., & Reid-Edwards, R. A. (2009). D-branes and doubled geometry. Journal of High Energy Physics, 2009(04), Article 113. https://doi.org/10.1088/1126-6708/2009/04/113

We define the open string version of the nonlinear sigma model on doubled geometry introduced by Hull and Reid-Edwards, and derive its boundary conditions. These conditions include the restriction of D-branes to maximally isotropic submanifolds as we... Read More about D-branes and doubled geometry.

Geometric and non-geometric compactifications of IIB supergravity (2008)
Journal Article
Reid-Edwards, R. A. (2008). Geometric and non-geometric compactifications of IIB supergravity. Journal of High Energy Physics, 2008(12), Article 043. https://doi.org/10.1088/1126-6708/2008/12/043

Complementary geometric and non-geometric consistent reductions of IIB supergravity are studied. The geometric reductions on the identified group manifold Script X = G/Γ are found to have a gauge symmetry with Lie algebroid structure, generalising th... Read More about Geometric and non-geometric compactifications of IIB supergravity.

𝒩 = 4 gauged supergravity from duality-twist compactifications of string theory (2008)
Journal Article
Reid-Edwards, R. A., & Spanjaard, B. (2008). 𝒩 = 4 gauged supergravity from duality-twist compactifications of string theory. Journal of High Energy Physics, 2008(12), Article 052. https://doi.org/10.1088/1126-6708/2008/12/052

We investigate the lifting of half-maximal four-dimensional gauged supergravities to compactifications of string theory. It is shown that a class of such supergravities can arise from compactifications of IIA string theory on manifolds of SU(2)-struc... Read More about 𝒩 = 4 gauged supergravity from duality-twist compactifications of string theory.

Worldsheet boundary conditions in Poisson-Lie T-duality (2007)
Journal Article
Albertsson, C., & Reid-Edwards, R. A. (2007). Worldsheet boundary conditions in Poisson-Lie T-duality. Journal of High Energy Physics, 2007(03), Article 004. https://doi.org/10.1088/1126-6708/2007/03/004

We apply canonical Poisson-Lie T-duality transformations to bosonic open string worldsheet boundary conditions, showing that the form of these conditions is invariant at the classical level, and therefore they are compatible with Poisson-Lie T-dualit... Read More about Worldsheet boundary conditions in Poisson-Lie T-duality.

Flux compactifications of M-theory on twisted tori (2006)
Journal Article
Hull, C. M., & Reid-Edwards, R. A. (2006). Flux compactifications of M-theory on twisted tori. Journal of High Energy Physics, 2006(10), 086-086. https://doi.org/10.1088/1126-6708/2006/10/086

We find the bosonic sector of the gauged supergravities that are obtained from 11-dimensional supergravity by Scherk-Schwarz dimensional reduction with flux to any dimension D. We show that, if certain obstructions are absent, the Scherk-Schwarz ansa... Read More about Flux compactifications of M-theory on twisted tori.

Vector Calculus (2005)
Book Chapter
(2005). Vector Calculus. In Lecture Notes on the Mathematics of Acoustics (11383). (1). Imperial College Press

Functions of a Complex Variable (2005)
Book Chapter
(2005). Functions of a Complex Variable. In Lecture Notes on the Mathematics of Accoustics (33 - 56). Imperial College Press

Integral Transforms (2005)
Book Chapter
(2005). Integral Transforms. In Lecture Notes on the Mathematics of Acoustics (57 - 90). Imperial College Press