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A sufficient criterion for integrability of stochastic many-body dynamics and quantum spin chains

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arxiv hep-th/0205169 v1 pith:NUINDKJI submitted 2002-05-16 hep-th cond-mat.stat-mech

A sufficient criterion for integrability of stochastic many-body dynamics and quantum spin chains

classification hep-th cond-mat.stat-mech
keywords algebraansatzdynamicalquantumchainsdynamicsmatrixobtained
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We propose a dynamical matrix product ansatz describing the stochastic dynamics of two species of particles with excluded-volume interaction and the quantum mechanics of the associated quantum spin chains respectively. Analyzing consistency of the time-dependent algebra which is obtained from the action of the corresponding Markov generator, we obtain sufficient conditions on the hopping rates for identifing the integrable models. From the dynamical algebra we construct the quadratic algebra of Zamolodchikov type, associativity of which is a Yang Baxter equation. The Bethe ansatz equations for the spectra are obtained directly from the dynamical matrix product ansatz.

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    math-ph 2026-07 accept novelty 6.0

    A new integrable family of exclusion processes, the (p,q)-SSEP, adds reactive particle pairs that transform or evaporate/condensate, with exact stationary densities and currents for one class of open boundaries.