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32 papers · 2 filters
Flux-induced isometry gauging in heterotic strings
Wu-yen Chuang, Peng Gao
We study the effect of flux-induced isometry gauging of the scalar manifold in N=2 heterotic string compactification with gauge fluxes. We show that a vanishing theorem by Witten p…
Reheating Metastable O'Raifeartaigh Models
Nathaniel J. Craig, Patrick J. Fox, Jay G. Wacker
In theories with multiple vacua, reheating to a temperature greater than the height of a barrier can stimulate transitions from a desirable metastable vacuum to a lower energy stat…
Supercritical stability, transitions and (pseudo)tachyons
Ofer Aharony, Eva Silverstein
Highly supercritical strings (c much greater than 15) with a time-like linear dilaton provide a large class of solutions to string theory, in which closed string tachyon condensati…
Is N = 8 Supergravity Ultraviolet Finite?
Zvi Bern, Lance J. Dixon, Radu Roiban
Conventional wisdom holds that no four-dimensional gravity field theory can be ultraviolet finite. This understanding is based mainly on power counting. Recent studies confirm that…
O'KKLT
Renata Kallosh, Andrei Linde
We propose to combine the quantum corrected O'Raifeartaigh model, which has a dS minimum near the origin of the moduli space, with the KKLT model with an AdS minimum. The combined…
Sinks in the Landscape, Boltzmann Brains, and the Cosmological Constant Problem
Andrei Linde
This paper extends the recent investigation of the string theory landscape in hep-th/0605266, where it was found that the decay rate of dS vacua to a collapsing space with a negati…