Thermodynamics of a two-dimensional interacting Bose gas trapped in a quartic potential

Karabulut E. O., Koyuncu M., ATAV Ü., TOMAK M.

PHYSICS LETTERS A, cilt.375, sa.3, ss.339-345, 2011 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 375 Sayı: 3
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1016/j.physleta.2010.11.041
  • Dergi Adı: PHYSICS LETTERS A
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.339-345
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

We have studied the Bose-Einstein condensation (BEC) of an interacting Bose gas confined in a two-dimensional (2D) quartic potential by using a mean-field, semiclassical two-fluid model. A thermodynamic analysis including the chemical potential, condensate fraction, total energy, and specific heat has been carried out by considering different values of the interaction strength. Finally, we have found that the behaviour of the condensate fraction and specific heat of quartically trapped bosons differs from those of bosons trapped in a harmonic potential. (C) 2010 Elsevier B.V. All rights reserved.