Universal Thermal Instabilities and the High-Temperature Phase of the N=4 Superstrings

1999/02/10 by Costas Kounnas, Kounnas, Costas · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #Pulsars and Gravitational Waves Research #hep-th

paper · pdf · doi:10.48550/arxiv.hep-th/9902072

15 pages, LATEX file, no figures

arxiv created 1999/02/10 · openalex publication_date 1999/02/10 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Using the properties of gauged N=4 supergravity, we show that it is possible to derive a universal thermal effective potential that describes all possible high-temperature instabilities of the known N=4 superstrings. These instabilities are due to non-perturbative dyonic modes, which become tachyonic in a region of the thermal moduli space M=s,t,u; M is common to all non-perturbative dual-equivalent N=4 superstrings in five dimensions. We analyse the non-perturbative thermal potential and show the existence of a phase transition at high temperatures corresponding to a condensation of 5-branes. This phase is described in detail, using an effective non-critical string theory.

Cited by

• Orbifold symmetry reductions of massive boson–fermion degeneracy
• Induced superstring cosmologies and moduli stabilization

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