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200 papers

We study novel type IIB compactifications on the T^6/Z_2 orientifold. This geometry arises in the T-dual description of Type I theory on T^6, and one normally introduces 16 space-filling D3-branes to cancel the RR tadpoles. Here, we cancel…

High Energy Physics - Theory · Physics 2009-11-07 Shamit Kachru , Michael Schulz , Sandip Trivedi

We study the stabilization of complex structure moduli in Type IIB flux compactifications by using recent general results about the form of the superpotential and K\"ahler potential near the boundaries of the moduli space. In this process…

High Energy Physics - Theory · Physics 2021-08-30 Brice Bastian , Thomas W. Grimm , Damian van de Heisteeg

We geometrically engineer N=2 theories perturbed by a superpotential by adding 3-form flux with support at infinity to local Calabi-Yau geometries in type IIB. This allows us to apply the formalism of Ooguri, Ookouchi, and Park…

High Energy Physics - Theory · Physics 2014-11-18 Lotte Hollands , Joseph Marsano , Kyriakos Papadodimas , Masaki Shigemori

This article first reviews the calculation of the N = 1 effective action for generic type IIA and type IIB Calabi-Yau orientifolds in the presence of background fluxes by using a Kaluza-Klein reduction. The Kahler potential, the gauge…

High Energy Physics - Theory · Physics 2009-11-11 Thomas W. Grimm

In the context of four-dimensional ${\cal N} = 1$ type IIB superstring compactifications, the U-dual completion of the holomorphic flux superpotential leads to four S-dual pairs of fluxes, namely $(F, H), (Q, P), (P', Q')$ and $(H', F')$.…

High Energy Physics - Theory · Physics 2025-02-04 Sayan Biswas , George K. Leontaris , Pramod Shukla

We study compactifications of Type IIB string theory on a K3 \times T^2/Z_2 orientifold in the presence of RR and NS flux. We find the most general supersymmetry preserving, Poincare invariant, vacua in this model. All the complex structure…

High Energy Physics - Theory · Physics 2010-11-19 Prasanta K. Tripathy , Sandip P. Trivedi

The moduli space of N=1 type II warped compactions to flat space with generic internal fluxes is studied. Using the underlying integrable generalized complex structure that characterizes these vacua, the different deformations are…

High Energy Physics - Theory · Physics 2015-05-13 Luca Martucci

We outline a general geometric structure that underlies the N=1 superpotentials of a certain class of flux and brane configurations in type II string compactifications on Calabi-Yau threefolds. This ``holomorphic N=1 special geometry'' is…

High Energy Physics - Theory · Physics 2007-05-23 W. Lerche , P. Mayr , N. Warner

We consider flux vacua attractor equations in type IIA string theory compactified on generalized geometries with orientifold projections. The four-dimensional N=1 superpotential in this compactification can be written as the sum of the…

High Energy Physics - Theory · Physics 2009-05-29 Tetsuji Kimura

We initiate a systematic study of type II orientifold flux vacua in three dimensions including gauge and metric fluxes, O-planes and D-branes. We derive simple flux models (we dub them RSTU-models) that admit a description in terms of…

High Energy Physics - Theory · Physics 2025-09-30 Álvaro Arboleya , Adolfo Guarino , Matteo Morittu

Geometric modularity has recently been conjectured to be a characteristic feature for flux vacua with $W=0$. This paper provides support for the conjecture by computing motivic modular forms in a direct way for several string…

High Energy Physics - Theory · Physics 2020-10-08 Rolf Schimmrigk

We report on a new class of flux vacua generically present in Calabi-Yau compactifications of type-IIB string theory. At these vacua, the mass spectrum of the complete axio-dilaton/complex structure sector is given, to leading order in…

High Energy Physics - Theory · Physics 2021-05-12 Jose J. Blanco-Pillado , Kepa Sousa , Mikel A. Urkiola , Jeremy M. Wachter

We obtain the vacuum solutions for M-theory compactified on eight-manifolds with non-vanishing four-form flux by analyzing the scalar potential appearing in the three-dimensional theory. Many of these vacua are not supersymmetric and yet…

High Energy Physics - Theory · Physics 2014-11-18 Katrin Becker , Melanie Becker , Michael Haack , Jan Louis

We study the compactification of M-theory on Calabi-Yau five-folds and the resulting N=2 super-mechanics theories. By explicit reduction from 11 dimensions, including both bosonic and fermionic terms, we calculate the one-dimensional…

High Energy Physics - Theory · Physics 2009-05-18 Alexander S. Haupt , Andre Lukas , K. S. Stelle

Using a recently proposed group-theoretical approach, we explore novel gaugings of maximal supergravity in four dimensions with gauge group embeddings that can be generated by fluxes of IIB string theory. The corresponding potentials are…

High Energy Physics - Theory · Physics 2009-11-10 Bernard de Wit , Henning Samtleben , Mario Trigiante

We study a class of orientifold compactifications of type IIB supergravity with fluxes down to 4D in connection with truncations of half-maximal gauged supergravities yielding isotropic STU-models with minimal supersymmetry. In this…

High Energy Physics - Theory · Physics 2016-02-17 Ulf Danielsson , Giuseppe Dibitetto

We present a data-driven investigation of the exhaustive ensemble of no-scale type IIB flux vacua constructed in \cite{Chauhan:2025rdj}. Using a combination of linear and non-linear dimensionality-reduction techniques, we analyse both flux…

High Energy Physics - Theory · Physics 2026-03-06 Aman Chauhan , Michele Cicoli , Sven Krippendorf , Anshuman Maharana , Pellegrino Piantadosi , Andreas Schachner

On the Type IIB toroidal T^6 orientifolds with generic flux compactifications, we conjecture that in generic supsersymmetric Minkowski vacua, at least one of the flux contributions to the seven-brane and D3-brane tadpoles is positive if the…

High Energy Physics - Theory · Physics 2011-07-19 Ching-Ming Chen , Shan Hu , Tianjun Li , Dimitri V. Nanopoulos

We calculate the D-brane superpotentials for two Calabi-Yau manifolds with three deformations by the generalized hypergeometric GKZ systems, which give rise to the flux superpotentials $\mathcal{W}_{GVW}$ of the dual F-theory…

High Energy Physics - Theory · Physics 2013-03-06 Feng-Jun Xu , Fu-Zhong Yang

We study type IIA string theory compactified on Calabi-Yau fourfolds and heterotic string theory compactified on Calabi-Yau threefolds times a two-torus. We derive the resulting effective theories which have two space-time dimensions and…

High Energy Physics - Theory · Physics 2010-12-03 Michael Haack , Jan Louis , Monika Marquart