Second order phase transitions: from infinite to finite systems
Abstract
We investigate the Equation of State (EOS) of classical systems having 300 and 512 particles confined in a box with periodic boundary conditions. We show that such a system, independently on the number of particles investigated, has a critical density of about {1}/{3} the ground state density and a critical temperature of about 2.5 MeV. The mass distribution at the critical point exhibits a power law with τ = 2.23. Making use of the grand partition function of Fisher's droplet model, we obtain an analytical EOS around the critical point in good agreement with the one extracted from the numerical simulations.
 Publication:

Nuclear Physics A
 Pub Date:
 February 1996
 DOI:
 10.1016/03759474(96)000401
 arXiv:
 arXiv:nuclth/9512019
 Bibcode:
 1996NuPhA.600..236F
 Keywords:

 Nuclear Theory
 EPrint:
 RevTex file, 17 pages + 9 figures available upon request from Belkacem@vaxlns.lns.infn.it