An alternative for moduli stabilisation |
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Authors: | Carlo Angelantonj Matteo Cardella Nikos Irges |
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Institution: | 1. Dipartimento di Fisica Teorica, Università di Torino, INFN Sezione di Torino, via P. Giuria 1, 10125 Torino, Italy;2. Dipartimento di Fisica dell''Università di Milano, INFN Sezione di Milano, via Celoria 16, 20133 Milano, Italy;3. High Energy and Elementary Particle Physics Division, Department of Physics, University of Crete, 71003 Heraklion, Greece |
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Abstract: | 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. |
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