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Supersymmetric vacuum configurations in string cosmology

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Published in Physical Review. D. 1999, vol. 59, no. 043507, p. 4
Abstract We examine in a cosmological context the conditions for unbroken supersymmetry in N=1 supergravity in D=10 dimensions. We show that the cosmological solutions of the equations of motion obtained considering only the bosonic sector correspond to vacuum states with spontaneous supersymmetry breaking. With a non vanishing gravitino-dilatino condensate we find a solution of the equations of motion that satisfies necessary conditions for unbroken supersymmetry and that smoothly interpolates between Minkowski space and DeSitter space with a linearly growing dilaton, thus providing a possible example of a supersymmetric and non-singular pre-big-bang cosmology.
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FOFFA, Stefano, MAGGIORE, Michele, STURANI, Riccardo. Supersymmetric vacuum configurations in string cosmology. In: Physical Review. D, 1999, vol. 59, n° 043507, p. 4. https://archive-ouverte.unige.ch/unige:2216

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Deposited on : 2009-07-09

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