Outputs (28)

G₂ mirrors from Calabi-Yau mirrors (2024)
Journal Article
Braun, A. P., & Dadhley, R. (2024). G₂ mirrors from Calabi-Yau mirrors. Journal of High Energy Physics, 2024(10), Article 81. https://doi.org/10.1007/jhep10%282024%29081

We study the worldsheet CFTs of type II strings on compact G2 orbifolds obtained as quotients of a product of a Calabi-Yau threefold and a circle. For such models, we argue that the Calabi-Yau mirror map implies a mirror map for the associated G2 var... Read More about G₂ mirrors from Calabi-Yau mirrors.

$G_2$-manifolds from 4d N=1 theories, part I: Domain walls (2024)
Journal Article
Braun, A. P., Sabag, E., Sacchi, M., & Schäfer-Nameki, S. (2024). $G_2$-manifolds from 4d N=1 theories, part I: Domain walls. SciPost Physics, 17(102), https://doi.org/10.21468/scipostphys.17.4.102

More on G-flux and general hodge cycles on the Fermat sextic (2024)
Journal Article
Braun, A. P., Fortin, H., Garcia, D. L., & Loyola, R. V. (2024). More on G-flux and general hodge cycles on the Fermat sextic. Journal of High Energy Physics, 2024(6), Article 46. https://doi.org/10.1007/jhep06%282024%29046

We study M-Theory solutions with G-flux on the Fermat sextic Calabi-Yau fourfold, focussing on the relationship between the number of stabilized complex structure moduli and the tadpole contribution of the flux. We use two alternative approaches to d... Read More about More on G-flux and general hodge cycles on the Fermat sextic.

Tadpoles and gauge symmetries (2023)
Journal Article
Braun, A. P., Fraiman, B., Graña, M., Lüst, S., & Parra De Freitas, H. (2023). Tadpoles and gauge symmetries. Journal of High Energy Physics, 2023(8), Article 134. https://doi.org/10.1007/jhep08%282023%29134

The tadpole conjecture proposes that complex structure moduli stabilisation by fluxes that have low tadpole charge can be realised only at special points in moduli space, leading generically to (large) gauge symmetries. Here we provide an exhaustive... Read More about Tadpoles and gauge symmetries.

Gauged 2-form symmetries in 6D SCFTs coupled to gravity (2021)
Journal Article
Braun, A. P., Larfors, M., & Oehlmann, P.-K. (2021). Gauged 2-form symmetries in 6D SCFTs coupled to gravity. Journal of High Energy Physics, 2021(12), Article 132. https://doi.org/10.1007/jhep12%282021%29132

We study six dimensional supergravity theories with superconformal sectors (SCFTs). Instances of such theories can be engineered using type IIB strings, or more generally F-Theory, which translates field theoretic constraints to geometry. Specificall... Read More about Gauged 2-form symmetries in 6D SCFTs coupled to gravity.

Fibre-base duality of 5d KK theories (2021)
Journal Article
Braun, A. P., Chen, J., Haghighat, B., Sperling, M., & Yang, S. (2021). Fibre-base duality of 5d KK theories. Journal of High Energy Physics, 2021(5), Article 200. https://doi.org/10.1007/jhep05%282021%29200

We study circle compactifications of 6d superconformal field theories giving rise to 5d rank 1 and rank 2 Kaluza-Klein theories. We realise the resulting theories as M-theory compactifications on local Calabi-Yau 3-folds and match the prepotentials f... Read More about Fibre-base duality of 5d KK theories.

G 4 flux, algebraic cycles and complex structure moduli stabilization (2021)
Journal Article
Braun, A., & Valandro, R. (2021). G 4 flux, algebraic cycles and complex structure moduli stabilization. Journal of High Energy Physics, 2021(1), Article 207. https://doi.org/10.1007/jhep01%282021%29207

We construct G4 fluxes that stabilize all of the 426 complex structure moduli of the sextic Calabi-Yau fourfold at the Fermat point. Studying flux stabilization usually requires solving Picard-Fuchs equations, which becomes unfeasible for models with... Read More about G 4 flux, algebraic cycles and complex structure moduli stabilization.

M-Theory and Orientifolds (2020)
Journal Article
Braun, A. P. (2020). M-Theory and Orientifolds. Journal of High Energy Physics, 2020(09), Article 65. https://doi.org/10.1007/jhep09%282020%29065

We construct the M-Theory lifts of type IIA orientifolds based on K3-fibred Calabi-Yau threefolds with compatible involutions. Such orientifolds are shown to lift to M-Theory on twisted connected sum G2 manifolds. Beautifully, the two building blocks... Read More about M-Theory and Orientifolds.

On Mirror Maps for Manifolds of Exceptional Holonomy (2019)
Journal Article
Braun, A. P., Majumder, S., & Otto, A. (2019). On Mirror Maps for Manifolds of Exceptional Holonomy. Journal of High Energy Physics, 2019(10), Article 204. https://doi.org/10.1007/jhep10%282019%29204

We study mirror symmetry of type II strings on manifolds with the exceptional holonomy groups G2 and Spin(7). Our central result is a construction of mirrors of Spin(7) manifolds realized as generalized connected sums. In parallel to twisted connecte... Read More about On Mirror Maps for Manifolds of Exceptional Holonomy.

Higgs bundles for M-theory on G2-manifolds (2019)
Journal Article
Braun, A. P., Cizel, S., Hübner, M., & Schäfer-Nameki, S. (2019). Higgs bundles for M-theory on G2-manifolds. Journal of High Energy Physics, 2019(3), Article 199. https://doi.org/10.1007/jhep03%282019%29199

M-theory compactified on G2-holonomy manifolds results in 4d N = 1 supersymmetric gauge theories coupled to gravity. In this paper we focus on the gauge sector of such compactifications by studying the Higgs bundle obtained from a partially twisted 7... Read More about Higgs bundles for M-theory on G2-manifolds.