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Bulk diffusion of 1D exclusion process with bond disorder. (English) Zbl 1144.60058
The author studies a particle system on $$Z$$ with special probability rates of jumps between $$k$$ and $$k+1$$. If the sequence of inverse rates satisfies the law of large numbers with finite limits then the hydrodynamic limit of the process is described by the heat equation. The process has subdiffusion behavior to the case in which the sequence of inverse rates satisfies the law of large numbers with infinite limits.

##### MSC:
 60K35 Interacting random processes; statistical mechanics type models; percolation theory 60K40 Other physical applications of random processes 60J27 Continuous-time Markov processes on discrete state spaces 82B10 Quantum equilibrium statistical mechanics (general) 82B20 Lattice systems (Ising, dimer, Potts, etc.) and systems on graphs arising in equilibrium statistical mechanics
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