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We compute the fluctuation exponents for a solvable model of one-dimensionaldirected polymers in random environment in the intermediate regime. This regimecorresponds to taking the inverse temperature to zero with the size of thesystem. The exponents satisfy the KPZ scaling relation and coincide withphysical predictions. In the critical case, we recover the fluctuationexponents of the Cole-Hopf solution of the KPZ equation in equilibrium andclose to equilibrium.

Fluctuation exponents for directed polymers in the intermediate disorder regime