Partition function zeros of zeta-urns
arXiv:2312.01806 · doi:10.5488/CMP.27.33601
Abstract
We discuss the distribution of partition function zeros for the grand-canonical ensemble of the zeta-urn model, where tuning a single parameter can give a first or any higher order condensation transition. We compute the locus of zeros for finite-size systems and test scaling relations describing the accumulation of zeros near the critical point against theoretical predictions for both the first and higher order transition regimes.
arXiv comment11 pages, 6 figures
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