Non extensive thermodynamics for hadronic matter with finite chemical potentials

Eugenio Megías, Débora P. Menezes, Airton Deppman

Research output: Contribution to journalArticleResearchpeer-review

30 Citations (Scopus)

Abstract

©2014 Elsevier B.V. The non extensive thermodynamics of an ideal gas composed by bosons and/or fermions is derived from its partition function for systems with finite chemical potentials. It is shown that the thermodynamical quantities derived in the present work are in agreement with those obtained in previous works when μ≤m. However some inconsistencies of previous references are corrected when μ>m. A discontinuity in the first derivatives of the partition function and its effects are discussed in detail. We show that at similar conditions, the non extensive statistics provide a harder equation of state than that provided by the Boltzmann-Gibbs statistics.
Original languageEnglish
Pages (from-to)15-24
JournalPhysica A: Statistical Mechanics and its Applications
Volume421
DOIs
Publication statusPublished - 9 Aug 2015

Keywords

  • Equation of state
  • Hadron physics
  • Neutron stars
  • Phase transition
  • Quantum chromodynamics
  • Thermodynamics

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