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Exact spectral gaps for the asymmetric exclusion process with boundaries

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Abstract Book of the XXIII IUPAP International Conference on Statistical Physics, Genova, Italy, (9-13 July 2007)

Abstract

Using Bethe's ansatz we derive the complete spectrum of the asymmetric exclusion process with the most general open boundary conditions. For total asymmetry, the resulting dynamic phase diagram has boundary induced crossovers between massive, diffusive and KPZ scaling regimes. A possible interpretation of our results is given in terms of an effective domain wall theory.

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