2009/06/30 by Anindya Biswas
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Heat capacity #Many-body theory #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Quantum, superfluid, helium dynamics #Statistical physics #Strong interaction #Thermodynamics #Trap (plumbing) #cond-mat.quant-gas
paper · pdf · doi:10.1088/0953-4075/42/21/215302
published as 2009 J. Phys. B: At. Mol. Opt. Phys. 42 215302 · 15 pages, 5 figures
arxiv created 2009/09/22 · openalex publication_date 2009/10/14 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
An approximate hyperspherical many-body theory has been used to calculate the heat capacity and the condensate fraction of a BEC with effective repulsive interaction. The effect of interactions has been analysed and compared with the non-interacting case. It has been found that the repulsive interaction lowers the critical temperature from the value found in the non-interacting case. The difference between the critical temperatures increases with the increase in the total number of atoms in the trap.