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Blocking measures for asymmetric exclusion processes via coupling. (English) Zbl 1002.60100
Summary: We give sufficient conditions on the rates of two asymmetric exclusion processes such that the existence of an invariant blocking measure for the first implies the existence of such a measure for the second. The main tool is a coupling between the two processes under which the first dominates the second in an appropriate sense. In an appendix we construct a class of processes for which the existence of a blocking measure can be proven directly; these are candidates for comparison processes in applications of the main result.

60K99 Special processes
60K35 Interacting random processes; statistical mechanics type models; percolation theory
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