English

Multispecies TASEP and combinatorial $R$

Mathematical Physics 2015-08-06 v3 math.MP Quantum Algebra Exactly Solvable and Integrable Systems

Abstract

We identify the algorithm for constructing steady states of the nn-species totally asymmetric simple exclusion process (TASEP) on LL site periodic chain by Ferrari and Martin with a composition of combinatorial RR for the quantum affine algebra Uq(sl^L)U_q(\widehat{sl}_L) in crystal base theory. Based on this connection and the factorized form of the RR matrix derived recently from the tetrahedron equation, we establish a new matrix product formula for the steady state of the TASEP which is expressed in terms of corner transfer matrices of the qq-oscillator valued five-vertex model at q=0q=0.

Cite

@article{arxiv.1506.04490,
  title  = {Multispecies TASEP and combinatorial $R$},
  author = {Atsuo Kuniba and Shouya Maruyama and Masato Okado},
  journal= {arXiv preprint arXiv:1506.04490},
  year   = {2015}
}

Comments

16 pages, minor corrections

R2 v1 2026-06-22T09:53:32.330Z