Results 61 to 70 of about 9,239 (185)
Journal of High Energy Physics, 2020 We study non-perturbative instabilities of AdS spacetime in General Relativity with a cosmological constant in arbitrary dimensions. In this simple setup we explicitly construct a class of gravitational instantons generalizing Witten’s bubble of nothing.
Giuseppe Dibitetto +2 more
doaj +1 more source
Holography for Non-Critical Superstrings [PDF]
, 1999 We argue that a class of ``non-critical superstring'' vacua is holographically related to the (non-gravitational) theory obtained by studying string theory on a singular Calabi-Yau manifold in the decoupling limit $g_s\to 0$.
Giveon, A., Kutasov, D., Pelc, O.
core +4 more sources
Moduli stabilization in type IIB orientifolds at h2,1 = 50
Journal of High Energy Physics, 2023 We study moduli stabilization in Calabi-Yau orientifold compactifications of type IIB string theory with O3- and O7-planes. We consider a Calabi-Yau three-fold with Hodge number h 2,1 = 50 and stabilize all axio-dilaton and complex-structure moduli by ...
Konstantinos Tsagkaris, Erik Plauschinn
doaj +1 more source
, 1995 We present dyonic multi-membrane solutions of the N=2 D=8 supergravity theory that serves as the effective field theory of the $T^2$-compactified type II superstring theory.
Duff +25 more
core +2 more sources
de-Sitter vacua via consistent D-terms [PDF]
, 2005 We introduce a new mechanism for producing locally stable de-Sitter or Minkowski vacua, with spontaneously broken N=1 supersymmetry and no massless scalars, applicable to superstring and M-theory compactifications with fluxes. We illustrate the mechanism
Fabio Zwirner +3 more
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String Theory - From Physics to Metaphysics [PDF]
, 2006 Currently, string theory represents the only advanced approach to a unification of all interactions, including gravity. In spite of the more than thirty years of its existence it did not make any empirically testable predictions.
Hedrich, Reiner
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Supersymmetry and the Supergravity Landscape [PDF]
, 2006 In the recent times a lot of effort has been devoted to improve our knowledge about the space of string theory vacua (``the landscape'') to find statistical grounds to justify how and why the theory selects its vacuum.
Alonso-Alberca +34 more
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New de Sitter solutions of 10d type IIB supergravity
Journal of High Energy Physics, 2020 We find and study 17 new de Sitter solutions of ten-dimensional (10d) type IIB supergravity with intersecting D 5-branes and orientifold O 5-planes, as well as a new Minkowski one.
David Andriot +2 more
doaj +1 more source
Systematics of type IIB moduli stabilisation with odd axions
Journal of High Energy Physics, 2022 Moduli stabilisation in superstring compactifications on Calabi-Yau orientifolds remains a key challenge in the search for realistic string vacua.
Michele Cicoli +2 more
doaj +1 more source
Scaling limits of dS vacua and the swampland
Journal of High Energy Physics, 2019 We discuss the properties of massive type IIA flux compactifications. In particular, we investigate in which case one can obtain dS vacua at large volume and small coupling.
Andreas Banlaki +3 more
doaj +1 more source