Condensation in the inclusion process and related models

Details Condensation in the inclusion process and related models Condensation in the inclusion process and related models

2010-09-14

arxiv.org/abs/1009.2799v2

J. Stat. Phys. 142(5), 952-974 (2011)

Physics

Condensed Matter

Statistical Mechanics

29 pages, 3 figures, to appear in J. Stat. Phys

Scientific paper

10.1007/s10955-011-0151-9

We study condensation in several particle systems related to the inclusion process. For an asymmetric one-dimensional version with closed boundary conditions and drift to the right, we show that all but a finite number of particles condense on the right-most site. This is extended to a general result for independent random variables with different tails, where condensation occurs for the index (site) with the heaviest tail, generalizing also previous results for zero-range processes. For inclusion processes with homogeneous stationary measures we establish condensation in the limit of vanishing diffusion strength in the dynamics, and give several details about how the limit is approached for finite and infinite systems. Finally, we consider a continuous model dual to the inclusion process, the so-called Brownian energy process, and prove similar condensation results.

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