Towards matter ination in heterotic string theory
Towards matter ination in heterotic string theory
Recently, a class of inflation models in supergravity with gauge non-singlet matter fields as the inflation has been proposed. It is based on a 'tribrid' structure in the superpotential and on a 'Heisenberg symmetry' for solving the η-problem. We suggest that a generalization of this model class may be suitable …