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Mathematical Physics

arXiv:0904.4655 (math-ph)
[Submitted on 29 Apr 2009 (v1), last revised 16 Sep 2009 (this version, v2)]

Title:Two speed TASEP

Authors:Alexei Borodin (1), Patrik L. Ferrari (2), Tomohiro Sasamoto (3) ((1)Caltech, (2)Bonn University, (3)Chiba University and TU Munich)
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Abstract: We consider the TASEP on Z with two blocks of particles having different jump rates. We study the large time behavior of particles' positions. It depends both on the jump rates and the region we focus on, and we determine the complete process diagram. In particular, we discover a new transition process in the region where the influence of the random and deterministic parts of the initial condition interact. Slow particles may create a shock, where the particle density is discontinuous and the distribution of a particle's position is asymptotically singular. We determine the diffusion coefficient of the shock without using second class particles. We also analyze the case where particles are effectively blocked by a wall moving with speed equal to their intrinsic jump rate.
Comments: 51 pages, 7 figures, LaTeX
Subjects: Mathematical Physics (math-ph); Statistical Mechanics (cond-mat.stat-mech); Probability (math.PR)
MSC classes: 82C22, 60K35, 15A52
Cite as: arXiv:0904.4655 [math-ph]
  (or arXiv:0904.4655v2 [math-ph] for this version)
  https://doi.org/10.48550/arXiv.0904.4655
Journal reference: J. Stat. Phys. 137 (2009), 936-977
Related DOI: https://doi.org/10.1007/s10955-009-9837-7

Submission history

From: Patrik L. Ferrari [view email]
[v1] Wed, 29 Apr 2009 19:42:49 UTC (46 KB)
[v2] Wed, 16 Sep 2009 10:38:21 UTC (46 KB)
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