Asymmetric exclusion model with impurities
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American Physical Society (APS)
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Abstract
An integrable asymmetric exclusion process with impurities is formulated. The model displays the full spectrum of the stochastic asymmetric XXZ chain plus new levels. We derive the Bethe equations and calculate the spectral gap for the totally asymmetric diffusion at half filling. While the standard asymmetric exclusion process without impurities belongs to the KPZ universality class with an exponent 3 2, our model has a scaling exponent 5 3. © 2010 The American Physical Society.
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English
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Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, v. 81, n. 5, 2010.
