Publications (22)
Elliptic Fibrations with Rank Three Mordell-Weil Group: F-theory with U(1) x U(1) x U(1) Gauge Symmetry
Mirjam Cvetic, Denis Klevers, Hernan Piragua +1
We analyze general F-theory compactifications with U(1) x U(1) x U(1) Abelian gauge symmetry by constructing the general elliptically fibered Calabi-Yau manifolds with a rank three…
Five-Brane Superpotentials and Heterotic/F-theory Duality
Thomas W. Grimm, Tae-Won Ha, Albrecht Klemm +1
Under heterotic/F-theory duality it was argued that a wide class of heterotic five-branes is mapped into the geometry of an F-theory compactification manifold. In four-dimensional…
General U(1)xU(1) F-theory Compactifications and Beyond: Geometry of unHiggsings and novel Matter Structure
Mirjam Cvetic, Denis Klevers, Hernan Piragua +1
We construct the general form of an F-theory compactification with two U(1) factors based on a general elliptically fibered Calabi-Yau manifold with Mordell-Weil group of rank two.…
The Arithmetic of Elliptic Fibrations in Gauge Theories on a Circle
Thomas W. Grimm, Andreas Kapfer, Denis Klevers
The geometry of elliptic fibrations translates to the physics of gauge theories in F-theory. We systematically develop the dictionary between arithmetic structures on elliptic curv…
Chiral Four-Dimensional F-Theory Compactifications With SU(5) and Multiple U(1)-Factors
Mirjam CvetiÄ, Antonella Grassi, Denis Klevers +1
We develop geometric techniques to determine the spectrum and the chiral indices of matter multiplets for four-dimensional F-theory compactifications on elliptic Calabi-Yau fourfol…
Three-Index Symmetric Matter Representations of SU(2) in F-Theory from Non-Tate Form Weierstrass Models
Denis Klevers, Washington Taylor
We give an explicit construction of a class of F-theory models with matter in the three-index symmetric (4) representation of SU(2). This matter is realized at codimension two loci…
F-Theory Vacua with Z_3 Gauge Symmetry
Mirjam CvetiÄ, Ron Donagi, Denis Klevers +2
Discrete gauge groups naturally arise in F-theory compactifications on genus-one fibered Calabi-Yau manifolds. Such geometries appear in families that are parameterized by the Tate…
Explicit de Sitter Flux Vacua for Global String Models with Chiral Matter
Michele Cicoli, Denis Klevers, Sven Krippendorf +3
We address the open question of performing an explicit stabilisation of all closed string moduli (including dilaton, complex structure and Kaehler moduli) in fluxed type IIB Calabi…
Computing Brane and Flux Superpotentials in F-theory Compactifications
Thomas W. Grimm, Tae-Won Ha, Albrecht Klemm +1
In four-dimensional F-theory compactifications with N=1 supersymmetry the fields describing the dynamics of space-time filling 7-branes are part of the complex structure moduli spa…
Anomaly Cancellation And Abelian Gauge Symmetries In F-theory
Mirjam CvetiÄ, Thomas W. Grimm, Denis Klevers
We study 4D F-theory compactifications on singular Calabi-Yau fourfolds with fluxes. The resulting N=1 effective theories can admit non-Abelian and U(1) gauge groups as well as cha…
Origin of Abelian Gauge Symmetries in Heterotic/F-theory Duality
Mirjam Cvetic, Antonella Grassi, Denis Klevers +2
We study aspects of heterotic/F-theory duality for compactifications with Abelian gauge symmetries. We consider F-theory on general Calabi-Yau manifolds with a rank one Mordell-Wei…
Compact heterotic orbifolds in blow-up
Stefan Groot Nibbelink, Denis Klevers, Felix Ploger +2
We compare heterotic string models on orbifolds with supergravity models on smooth compact spaces, obtained by resolving the orbifold singularities. Our main focus is on heterotic…
Five-Brane Superpotentials, Blow-Up Geometries and SU(3) Structure Manifolds
Thomas W. Grimm, Albrecht Klemm, Denis Klevers
We investigate the dynamics of space-time filling five-branes wrapped on curves in heterotic and orientifold Calabi-Yau compactifications. We first study the leading N=1 scalar pot…
Exotic matter on singular divisors in F-theory
Denis Klevers, David R. Morrison, Nikhil Raghuram +1
We analyze exotic matter representations that arise on singular seven-brane configurations in F-theory. We develop a general framework for analyzing such representations, and work…
Three-Family Particle Physics Models from Global F-theory Compactifications
Mirjam Cvetic, Denis Klevers, Damián Kaloni Mayorga Peña +2
We construct four-dimensional, globally consistent F-theory models with three chiral generations, whose gauge group and matter representations coincide with those of the Minimal Su…
F-Theory on all Toric Hypersurface Fibrations and its Higgs Branches
Denis Klevers, Damian Kaloni Mayorga Pena, Paul-Konstantin Oehlmann +2
We consider F-theory compactifications on genus-one fibered Calabi-Yau manifolds with their fibers realized as hypersurfaces in the toric varieties associated to the 16 reflexive 2…
Fluxes and Warping for Gauge Couplings in F-theory
Thomas W. Grimm, Denis Klevers, Maximilian Poretschkin
We compute flux-dependent corrections in the four-dimensional F-theory effective action using the M-theory dual description. In M-theory the 7-brane fluxes are encoded by four-form…
F-Theory Compactifications with Multiple U(1)-Factors: Addendum
Mirjam Cvetic, Denis Klevers, Hernan Piragua
The purpose of this note is to extend the results obtained in [arXiv:1303.6970] in two ways. First, the six-dimensional F-theory compactifications with U(1) x U(1) gauge symmetry o…
The D5-brane effective action and superpotential in N=1 compactifications
Thomas W. Grimm, Tae-Won Ha, Albrecht Klemm +1
The four-dimensional effective action for D5-branes in generic compact Calabi-Yau orientifolds is computed by performing a Kaluza-Klein reduction. The N=1 Kaehler potential, the su…
Holomorphic Couplings In Non-Perturbative String Compactifications
Denis Klevers
In this review article we present an analysis of several aspects of four-dimensional, non-perturbative N=1 compactifications of string theory. Our study focuses on brane dynamics a…
On finiteness of Type IIB compactifications: Magnetized branes on elliptic Calabi-Yau threefolds
Mirjam CvetiÄ, James Halverson, Denis Klevers +1
The string landscape satisfies interesting finiteness properties imposed by supersymmetry and string-theoretical consistency conditions. We study N=1 supersymmetric compactificatio…
F-Theory Compactifications with Multiple U(1)-Factors: Constructing Elliptic Fibrations with Rational Sections
Mirjam CvetiÄ, Denis Klevers, Hernan Piragua
We study F-theory compactifications with U(1)xU(1) gauge symmetry on elliptically fibered Calabi-Yau manifolds with a rank two Mordell-Weil group. We find that the natural presenta…