Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2010-12-21
Phys. Rev. E 83, 051128 (2011)
Physics
Condensed Matter
Statistical Mechanics
Scientific paper
In a recent study [C Arita and D Yanagisawa: J. Stat. Phys. 141, 829 (2010)] the stationary state of a parallel-update TASEP with varying system length, which can be regarded as a queueing process with excluded-volume effect (exclusive queueing process, EQP), was obtained. We analyze the dynamical properties of the number of particles $< N_t>$ and the position of the last particle (the system length) $< L_t>$, using an analytical method (generating function technique) as well as a phenomenological description based on domain wall dynamics and Monte Carlo simulations. The system exhibits two phases corresponding to linear convergence or divergence of $< N_t>$ and $< L_t>$. These phases can both further be subdivided into high-density and maximal-current subphases. The predictions of the domain wall theory are found to be in very good agreement quantitively with results from Monte Carlo simulations in the convergent phase. On the other hand, in the divergent phase, only the prediction for $< N_t>$ agrees with simulations.
Arita Chikashi
Schadschneider Andreas
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