Asymmetric exclusion model with impurities

Details Asymmetric exclusion model with impurities Asymmetric exclusion model with impurities

2010-05-20

arxiv.org/abs/1005.3780v1

Phys. Rev. E 81, 050104(R) (2010)

Physics

Condensed Matter

Statistical Mechanics

4 pages

Scientific paper

10.1103/PhysRevE.81.050104

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 a exponent 3/2, our model has a scaling exponent 5/2.

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