On the integrability of zero-range chipping models with factorized steady states

The conditions of the integrability of general zero range chipping models with factorized steady states, which were proposed in Evans et al (2004 J. Phys. A: Math. Gen. 37 L275), are examined. We find a three-parametric family of hopping probabilities for the models solvable by the Bethe ansatz, whi...

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Published inJournal of physics. A, Mathematical and theoretical Vol. 46; no. 46; pp. 465205 - 25
Main Author Povolotsky, A M
Format Journal Article
LanguageEnglish
Published IOP Publishing 22.11.2013
Subjects
asymmetric simple exclusion process
Bethe ansatz
Binomials
Byproducts
Chipping
Constraining
Evolution
Integral calculus
Mathematical analysis
Mathematical models
quantum binomial
Steady state
zero-range process
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Summary:The conditions of the integrability of general zero range chipping models with factorized steady states, which were proposed in Evans et al (2004 J. Phys. A: Math. Gen. 37 L275), are examined. We find a three-parametric family of hopping probabilities for the models solvable by the Bethe ansatz, which includes most of known integrable stochastic particle models as limiting cases. The solution is based on the quantum binomial formula for two elements of an associative algebra obeying generic homogeneous quadratic relations, which is proved as a byproduct. We use the Bethe ansatz to solve an eigenproblem for the transition matrix of the Markov process. On its basis, we conjecture an integral formula for the Green function of the evolution operator for the model on an infinite lattice and derive the Bethe equations for the spectrum of the model on a ring.
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ISSN:1751-8113
1751-8121
DOI:10.1088/1751-8113/46/46/465205