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The “landscape” of Pati–Salam heterotic superstring vacua [PDF]
The main aspects of a recently developed method for classification of heterotic superstring vacua in the Free Fermionic Formulation are presented. Using these techniques we classify a big number of approximately $10^{15}$ heterotic string vacua with Pati-
J Rizos
exaly +6 more sources
Top-quark mass coupling and classification of weakly coupled heterotic superstring vacua [PDF]
The quest for the Standard Model among the huge number of string vacua is usually based on a set of phenomenological criteria related to the massless spectrum of string models.
J Rizos
exaly +4 more sources
Symmetries of cosmological superstring vacua [PDF]
Abstract The concept of discrete scale-factor-duality transformations is extended to a full, continuous O(d, d) group. The action of the group transforms “cosmological” solutions of the low-energy, string-modified Einstein equations (including non-trivial dilaton and antisymmetric tensor fields) into other solutions, thus representing the natural ...
Veneziano, Gabriele, Meissner, K A
exaly +3 more sources
Eluding SUSY at every genus on stable closed string vacua [PDF]
In closed string vacua, ergodicity of unipotent ows provide a key for relat-ing vacuum stability to the UV behavior of spectra and interactions. Infrared finiteness at all genera in perturbation theory can be rephrased in terms of cancelations involving ...
Sérgio L Cacciatori +2 more
exaly +2 more sources
Type IIB flux compactifications with h 1,1 = 0
We revisit flux compactifications of type IIB string theory on ‘spaces’ dual to rigid Calabi-Yau manifolds. This rather unexplored part of the string landscapes harbors many interesting four-dimensional solutions, namely supersymmetric N $$ \mathcal{N} $$
Jacob Bardzell +4 more
doaj +1 more source
Charge completeness and the massless charge lattice in F-theory models of supergravity
We prove that, for every 6D supergravity theory that has an F-theory description, the property of charge completeness for the connected component of the gauge group (meaning that all charges in the corresponding charge lattice are realized by massive or ...
David R. Morrison, Washington Taylor
doaj +1 more source
Analytics of type IIB flux vacua and their mass spectra
We analyze the tree-level potential of type IIB flux compactifications in warped Calabi-Yau orientifolds, in regions of weak coupling and moderately large complex structure.
Thibaut Coudarchet +3 more
doaj +1 more source
Fake supersymmetry with tadpole potentials
We study tadpole potentials of non-supersymmetric strings, resorting to a first-order formalism known in the literature as fake supersymmetry. We present a detailed analysis for vacua with only gravity and the dilaton, displaying the obstructions that ...
Salvatore Raucci
doaj +1 more source
The convex hull swampland distance conjecture and bounds on non-geodesics
The Swampland Distance Conjecture (SDC) restricts the geodesic distances that scalars can traverse in effective field theories as they approach points at infinite distance in moduli space.
José Calderón-Infante +2 more
doaj +1 more source
Quantum log-corrections to swampland conjectures
Taking the anti-de Sitter minimum of KKLT and the large volume scenario at face value, we argue for the existence of logarithmic quantum corrections to AdS swampland conjectures.
Ralph Blumenhagen +2 more
doaj +1 more source

