Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2000-07-14
Phys.Lett. B488 (2000) 319-325
Physics
High Energy Physics
High Energy Physics - Lattice
12 pages, LaTeX2e File, 6 EPS-files
Scientific paper
10.1016/S0370-2693(00)00902-3
We analyze the critical behaviour of the three-dimensional, three-state Potts model in the presence of an external ordering field. From a finite size scaling analysis on lattices of size up to 70**3 we determine the critical endpoint of the line of first order phase transitions as (b_c, h_c) =(0.54938(2), 0.000775(10)). We determine the relevant temperature like and symmetry breaking directions at this second order critical point and explicitly verify that it is in the universality class of the three-dimensional Ising model.
Karsch Frithjof
Stickan Sven
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