Rényi entropy of zeta urns.
basic_science · Level V
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- Record sourced from PubMed, PMID 38243505.
- Also identified by DOI 10.1103/PhysRevE.108.064108.
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Abstract
We calculate analytically the Rényi entropy for the zeta-urn model with a Gibbs measure definition of the microstate probabilities. This allows us to obtain the singularities in the Rényi entropy from those of the thermodynamic potential, which is directly related to the free-energy density of the model. We enumerate the various possible behaviors of the Rényi entropy and its singularities, which depend on both the value of the power law in the zeta urn and the order of the Rényi entropy under consideration.