Quantitative Boltzmann–Gibbs Principles via Orthogonal Polynomial Duality

Mario Ayala Valenzuela, Gioia Carinci, Frank Redig

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)
34 Downloads (Pure)


We study fluctuation fields of orthogonal polynomials in the context of particle systems with duality. We thereby obtain a systematic orthogonal decomposition of the fluctuation fields of local functions, where the order of every term can be quantified. This implies a quantitative generalization of the Boltzmann–Gibbs principle. In the context of independent random walkers, we complete this program, including also fluctuation fields in non-stationary context (local equilibrium). For other interacting particle systems with duality such as the symmetric exclusion process, similar results can be obtained, under precise conditions on the n particle dynamics.

Original languageEnglish
Pages (from-to)980-999
Number of pages20
JournalJournal of Statistical Physics
Issue number6
Publication statusPublished - 2018


  • Boltzmann–Gibbs principle
  • Duality
  • Fluctuation field
  • Orthogonal polynomials


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