Group theory, entropy and the third law of thermodynamics


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Canturk B., Oikonomou T., Bagci G. B.

Annals of Physics, cilt.377, ss.62-70, 2017 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 377
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1016/j.aop.2016.12.013
  • Dergi Adı: Annals of Physics
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.62-70
  • Anahtar Kelimeler: Extensivity, Generalized entropies, Group theory, Khinchin axioms, Third law of thermodynamics
  • İstanbul Gelişim Üniversitesi Adresli: Hayır

Özet

Curado et al. (2016) have recently studied the axiomatic structure and the universality of a three-parameter trace-form entropy inspired by the group-theoretical structure. In this work, we study the group-theoretical entropy Sa,b,r in the context of the third law of thermodynamics where the parameters {a,b,r} are all independent. We show that this three-parameter entropy expression can simultaneously satisfy the third law of thermodynamics and the three Khinchin axioms, namely continuity, concavity and expansibility only when the parameter b is set to zero. In other words, it is thermodynamically valid only as a two-parameter generalization Sa,r. Moreover, the restriction set by the third law i.e., the condition b=0, is important in the sense that the so obtained two-parameter group-theoretical entropy becomes extensive only when this condition is met. We also illustrate the interval of validity of the third law using the one-dimensional Ising model with no external field. Finally, we show that the Sa,r is in the same universality class as that of the Kaniadakis entropy for 0