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- W1648829537 abstract "We study front propagation in the reaction diffusion process ${Astackrel{epsilon}to2A, Astackrel {epsilon_t}to3A}$ on a one dimensional (1d) lattice with hard core interaction between the particles. Using the leading particle picture, velocity of the front in the system is computed using different approximate methods, which is in good agreement with the simulation results. It is observed that in certain ranges of parameters, the front velocity varies as a power law of $epsilon_t$, which is well captured by our approximate schemes. We also observe that the front dynamics exhibits temporal velocity correlations and these must be taken care of in order to find the exact estimates for the front diffusion coefficient. This correlation changes sign depending upon the sign of $epsilon_t-D$, where $D$ is the bare diffusion coefficient of $A$ particles. For $epsilon_t=D$, the leading particle and thus the front moves like an uncorrelated random walker, which is explained through an exact analysis." @default.
- W1648829537 created "2016-06-24" @default.
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- W1648829537 date "2006-08-26" @default.
- W1648829537 modified "2023-10-12" @default.
- W1648829537 title "Front propagation in A$to$2A, A$to$3A process in 1d: velocity, diffusion and velocity correlations" @default.
- W1648829537 hasPublicationYear "2006" @default.
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