Journal
PHYSICS LETTERS B
Volume 641, Issue 6, Pages 474-480Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2006.08.072
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The one-loop vacuum energy is explicitly computed for a class of perturbative string vacua where supersymmetry is spontaneously broken by a T-duality invariant asymmetric Scherk-Schwarz deformation. The low-lying spectrum is tachyon-free for any value of the compactification radii and thus no Hagedorn-like phase-transition takes place. Indeed, the induced effective potential is free of divergence, and has a global anti-de Sitter minimum where geometric moduli are naturally stabilised. (c) 2006 Elsevier B.V. All rights reserved.
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