Results 41 to 50 of about 683 (126)
Fake supersymmetry with tadpole potentials
Journal of High Energy Physics, 2023 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
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Abelian F-theory models with charge-3 and charge-4 matter
Journal of High Energy Physics, 2018 This paper analyzes U(1) F-theory models admitting matter with charges q = 3 and 4. First, we systematically derive a q = 3 construction that generalizes the previous q = 3 examples.
Nikhil Raghuram
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The convex hull swampland distance conjecture and bounds on non-geodesics
Journal of High Energy Physics, 2021 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
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Uplifts of maximal supergravities and transitions to non-geometric vacua
Journal of High Energy Physics, 2019 We describe a new procedure to obtain consistent backgrounds that uplift vacua and deformations of various maximal gauged supergravities by taking a known solution and performing singular limits along the moduli space of the corresponding 4-dimensional ...
Gianguido Dall’Agata +2 more
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Explicit superstring vacua in a background of gravitational waves and dilaton [PDF]
Il Nuovo Cimento A, 1995 We present an explicit solution of superstring effective equations, represented by gravitational waves and dilaton backgrounds. Particular solutions will be examined in a forthcoming note.
Petermann, A., Zichichi, A.
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Weakly coupled de Sitter vacua with fluxes and the swampland
Journal of High Energy Physics, 2019 It was recently argued that the swampland distance conjecture rules out dS vacua at parametrically large field distances. We point out that this conclusion can in principle be avoided in the presence of large fluxes that are not bounded by a tadpole ...
Daniel Junghans
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Symmetries on the Space of (2, 2) Superstring Vacua and Automorphism Groups of Calabi-Yau Manifolds [PDF]
Progress of Theoretical Physics Supplement, 1990 Symmetry groups on the space of (2,2) string vacua for c = 3,6,9 are discussed in the context of orbifoldized Landau-Ginzburg theories. A general method for finding the maximal symmetry groups on the moduli space of untwisted marginal operators is presented, by studying symmetries on the resolution of isolated singularities of superpotentials ...
Giveon, A., Smit, D.-J.
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Mirror symmetry for G 2-manifolds: twisted connected sums and dual tops
Journal of High Energy Physics, 2017 Recently, at least 50 million of novel examples of compact G 2 holonomy manifolds have been constructed as twisted connected sums of asymptotically cylindrical Calabi-Yau threefolds.
Andreas P. Braun, Michele Del Zotto
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On R^4 terms and MHV amplitudes in N = 5,6 supergravity vacua of Type II superstrings [PDF]
Advances in High Energy Physics, 2010 19 ...
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Quantum log-corrections to swampland conjectures
Journal of High Energy Physics, 2020 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
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