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Paper   IPM / Physic / 9478
School of Physics
  Title:   Solvable Multi-Species Reaction-Diffusion Processes, with Particle-Dependent Hopping Rates
  Author(s): 
1.  Y. Naimi
2.  F. Roshani
  Status:   Published
  Journal: J.Stat. Mech: Theory and Experiments
  Year:  2009
  Pages:   P02001
  Supported by:  IPM
  Abstract:
By considering the master equation of the totally asymmetric exclusion process on a one-dimensional lattice and using two types of boundary conditions (i.e. interactions), two new families of the multi-species reactiondiffusion processes, with particle-dependent hopping rates, are investigated. In these models (i.e. reaction-diffusion and drop-push systems), we have the case of distinct particles where each particle A has its own intrinsic hopping rate v . They also contain the parameters that control the annihilation-diffusion rates (including pair-annihilation and coagulation to the right and left). We obtain two distinct new models. It is shown that these models are exactly solvable in the sense of the Bethe anstaz. The two-particle conditional probabilities and the large-time behavior of such systems are also calculated.

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