Results 81 to 90 of about 15,544,554 (381)
On TCS G 2 manifolds and 4D emergent strings
Journal of High Energy Physics, 2020 In this note, we study the Swampland Distance Conjecture in TCS G 2 manifold compactifications of M-theory. In particular, we are interested in testing a refined version — the Emergent String Conjecture, in settings with 4d N = 1 supersymmetry.
Fengjun Xu
doaj +1 more source
On the Complementarity of F-theory, Orientifolds, and Heterotic Strings [PDF]
Nucl.Phys. B525 (1998) 73-103, 1998 We study F-theory duals of six dimensional heterotic vacua in extreme regions of moduli space where the heterotic string is very strongly coupled. We demonstrate how to use orientifold limits of these F-theory duals to regain a perturbative string description. As an example, we reproduce the spectrum of a $T^4/\ZZ_{4}$ orientifold as an F-theory vacuum
arxiv +1 more source
F-theory and N$$ \mathcal{N} $$ = 1 SCFTs in four dimensions [PDF]
, 2016 A bstractUsing the F-theory realization, we identify a subclass of 6d (1,0) SCFTs whose compactification on a Riemann surface leads to N$$ \mathcal{N} $$ = 1 4d SCFTs where the moduli space of the Riemann surface is part of the moduli space of the theory.
D. Morrison, C. Vafa
semanticscholar +1 more source
N=1 Heterotic/F-Theory Duality [PDF]
Fortsch.Phys.47:587-642,1999, 1998 We review aspects of N=1 duality between the heterotic string and F-theory. After a description of string duality intended for the non-specialist the framework and the constraints for heterotic/F-theory compactifications are presented. The computations of the necessary Calabi-Yau manifold and vector bundle data, involving characteristic classes and ...
arxiv +1 more source
Enhanced gauge symmetry in 6D F‐theory models and tuned elliptic Calabi‐Yau threefolds [PDF]
, 2016 We systematically analyze the local combinations of gauge groups and matter that can arise in 6D F‐theory models over a fixed base. We compare the low‐energy constraints of anomaly cancellation to explicit F‐theory constructions using Weierstrass and ...
Samuel B. Johnson, W. Taylor
semanticscholar +1 more source
Algebraic cycles and local anomalies in F-theory [PDF]
Journal of High Energy Physics, 2017 We introduce a set of identities in the cohomology ring of elliptic fibrations which are equivalent to the cancellation of gauge and mixed gauge-gravitational anomalies in F-theory compactifications to four and six dimensions.
Martin Bies, C. Mayrhofer, T. Weigand
semanticscholar +1 more source
Decoupling gravity in F-theory [PDF]
Advances in Theoretical and Mathematical Physics, 2011 46 pages, 4 figures. References added.
openaire +4 more sources
On singular fibres in F-theory [PDF]
Journal of High Energy Physics, 2013 In this paper, we propose a connection between the field theory local model (Katz-Vafa field theory) and the type of singular fibre in flat crepant resolutions of elliptic Calabi-Yau fourfolds, a class of fourfolds considered by Esole and Yau. We review the analysis of degenerate fibres for models with gauge groups SU(5) and SO(10) in detail, and ...
Andreas P. Braun, Taizan Watari
openaire +3 more sources
GV-spectroscopy for F-theory on genus-one fibrations
Journal of High Energy Physics, 2020 We present a novel technique to obtain base independent expressions for the matter loci of fibrations of complete intersection Calabi-Yau onefolds in toric ambient spaces.
Paul-Konstantin Oehlmann +1 more
doaj +1 more source
F-theory Description of 3-String Junction [PDF]
Commun.Theor.Phys.40:537-542,2003, 2003 The geometrical description of BPS 3-string junction in the F-theory background is given by lifting a string junction in IIB into F-theory and constructing a holomorphic curve in K3 with respect to a special complex structure of K3. The holomorphic curve is fibration of 1-cycles of the elliptic fiber over the geodesic string junction.
arxiv +1 more source