Compactification and inflation in the superstring theory from the condensation of gravitino pairs

Details Compactification and inflation in the superstring theory from the condensation of gravitino pairs Compactification and inflation in the superstring theory from the condensation of gravitino pairs

Dec 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987phlb..199..509p&link_type=abstract

Physics Letters B, Volume 199, Issue 4, p. 509-515.

Physics

5

Scientific paper

We discuss the possibility that inflation can occur in the E8×E8' heterotic superstring theory, if there is a pair condensation of the gravitino field ψA and also of the Majorana-Weyl spinor λ, as suggested by the Helayël-Neto and Smith. In the absence of a condensation of the anti-symmetric tensor field HMNP, then the associated potential V(θ,φ) is bounded from below and independent of the dilaton field φ. It can be made to vanish at the minimum, where the compactification scale θ is fixed. Alternatively, a small cosmological constant may remain (ultimately to be cancelled by radiative corrections at the lower energy scale of the gaugino condensation), which could in principle lead to inflation.
Present address: Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Bombay 400 005, India.

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