Bose-Einstein condensation and non-extensive statistics for finite systems

Autor(es)

Megias, E. ^{[1, 2]} ; Timoteo, V. S. ^[3] ; Gammal, A. ^[4] ; Deppman, A. ^[4]

Afiliação do(s) autor(es)

^[1] Univ Granada, Dept Fis Atom Mol & Nucl, Granada - Spain

^[2] Univ Granada, Inst Carlos I Fis Teor & Computac, Granada - Spain

^[3] Univ Estadual Campinas, UNICAMP, GOMNI FT, Grp Opt & Modelagem Numer, Fac Tecnol, Campinas - Brazil

^[4] Univ Sao Paulo, Inst Fis, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS; v. 585, JAN 1 2022.
• Citações Web of Science: 0

Resumo

We study the Bose-Einstein condensation in non-extensive statistics for a free gas of bosons, and extend the results to the non-relativistic case as well. We present results for the dependence of the critical temperature and the condensate fraction on the entropic index, q, and show that the condensate can exist only for a limited range of q in both relativistic and non-relativistic systems. We provide numerical results for other thermodynamics quantities like the internal energy, specific heat and number fluctuations. We discuss the implications for high energy physics and hadron physics. The results for the non-relativistic case can be of interest in cold-atom systems. (C) 2021 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 16/17612-7 - Dinâmica de sistemas de muitos corpos IV
• Beneficiário: Arnaldo Gammal
• Modalidade de apoio: Auxílio à Pesquisa - Temático