caa a22 4500 44536629X CHVBK 20180317142931.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s10909-010-0232-1 doi (NATIONALLICENCE)springer-10.1007/s10909-010-0232-1 Thermodynamics of Finite Bose Systems: An Exact Canonical-Ensemble Treatment with Different Traps [Elektronische Daten] [Jianhui Wang, Yongli Ma, Jizhou He] Based on an exact canonical partition function, we investigate the thermodynamics and trap-size scaling behaviors for a finite number of ideal bosons confined in a cubic box or in a harmonic trap. Both in the box trap imposed by either periodic or Dirichlet boundary conditions (BCs) and in the harmonic trap, we calculate several physical quantities including the chemical potential μ, specific heat C N, condensate fraction 〈n 0〉/N, root-mean-square fluctuations δ n 0 of the condensate population, and transition temperature T c, and compare these quantities under different traps. We discuss the particle-number dependence of T c through proposing several T c definitions, where the differences among these values are considerable for the finite systems. Springer Science+Business Media, LLC, 2010 Finite Bose systems nationallicence Canonical ensemble nationallicence Transition temperature nationallicence Wang Jianhui Department of Physics, Nanchang University, 330031, Nanchang, China aut Ma Yongli Department of Physics, Fudan University, 200433, Shanghai, China aut He Jizhou Department of Physics, Nanchang University, 330031, Nanchang, China aut Journal of Low Temperature Physics Springer US; http://www.springer-ny.com 162/1-2(2011-01-01), 23-33 0022-2291 162:1-2<23 2011 162 10909 https://doi.org/10.1007/s10909-010-0232-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10909-010-0232-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wang Jianhui Department of Physics, Nanchang University, 330031, Nanchang, China aut NATIONALLICENCE 700 1- Ma Yongli Department of Physics, Fudan University, 200433, Shanghai, China aut NATIONALLICENCE 700 1- He Jizhou Department of Physics, Nanchang University, 330031, Nanchang, China aut NATIONALLICENCE 773 0- Journal of Low Temperature Physics Springer US; http://www.springer-ny.com 162/1-2(2011-01-01), 23-33 0022-2291 162:1-2<23 2011 162 10909 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer