Results 11 to 20 of about 683 (126)
Quaternionic manifolds for type II superstring vacua of Calabi-Yau spaces [PDF]
Nuclear Physics B, 1990 Abstract In type II theories compactified on Calabi-Yau manifolds the moduli fields are accompanied by (Ramond-Ramond) scalar superpartners. N = 2 space-time supersymmetry requires the low-energy effective mutual interaction of these excitations be described by a quaternionic σ-model in target space.
S. Ferrara, S. Sabharwal
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Critical superstring vacua from noncritical manifolds: A novel framework for string compactification and mirror symmetry [PDF]
Physical Review Letters, 1993 A new framework is found for the compactification of supersymmetric string theory. It is shown that the massless spectra of critical string vacua with central charge c=3${\mathit{D}}_{\mathrm{crit}}$ can be derived from manifolds of complex dimension ${\mathit{D}}_{\mathrm{crit}}$+2(Q-1),Q\ensuremath{\ge}1, whose first Chern class is quantized in a ...
Rolf Schimmrigk
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Cosmological implications of domain walls due to duality invariant moduli sector of superstring vacua [PDF]
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 1992 10p., 3 figures, not included, minor wording ...
R L Davis
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Top-quark mass coupling and classification of weakly coupled heterotic superstring vacua [PDF]
European Physical Journal C, 2014 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. In this work we study criteria associated with interactions in the effective low energy theory and in particular with the presence of the coupling that provides mass to the top ...
exaly +3 more sources
Spacetime Variable Superstring Vacua [PDF]
International Journal of Modern Physics A, 1993 In a general superstring vacuum configuration, the `internal' space (sector) varies in spacetime. When this variation is non-trivial only in two space-like dimensions, the vacuum contains static cosmic strings with finite energy per unit length and which is, up to interactions with matter, an easily computed topological invariant.
Green, Paul S., Hubsch, Tristan
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Superstring cosmology for N4 = 1 → 0 superstring vacua [PDF]
Fortschritte der Physik, 2011 AbstractWe study the cosmology of perturbative heterotic superstring theory during the radiation‐like era for semi‐realistic backgrounds with initial 𝒩 = 1 supersymmetry. This analysis is valid for times after the Hagedorn era (or alternatively inflation era) but before the electroweak symmetry breaking transition.
Estes, John +2 more
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Top mass and classification of heterotic superstring vacua [PDF]
Proceedings of Proceedings of the Corfu Summer Institute 2011 — PoS(CORFU2011), 2012 exaly +2 more sources
De Sitter vacua — when are ‘subleading corrections’ really subleading?
Journal of High Energy Physics, 2023 We consider various string-loop, warping and curvature corrections that are expected to appear in type IIB moduli stabilisation scenarios. It has recently been argued, in the context of strongly-warped LVS de Sitter vacua, that it is impossible to ...
Bruno Valeixo Bento +3 more
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On fluxes in the 19 Landau-Ginzburg model
Journal of High Energy Physics, 2023 In this paper we present a large class of flux backgrounds and solve the shortest vector problem in type IIB string theory on an orientifold of the 19 Landau-Ginzburg model.
Katrin Becker +2 more
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A search for exact superstring vacua [PDF]
Il Nuovo Cimento A, 1994 9 pages, latex, CERN-TH.6946 ...
Petermann, A., Zichichi, A.
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