Physics – Condensed Matter – Statistical Mechanics
Scientific paper
1998-10-15
Phys.Rev. E60 (1999) 5009
Physics
Condensed Matter
Statistical Mechanics
REVTEX file, 4 pages, 5 figures
Scientific paper
10.1103/PhysRevE.60.R5009
Certain geometric properties of submanifolds of configuration space are numerically investigated for classical lattice phi^4 models in one and two dimensions. Peculiar behaviors of the computed geometric quantities are found only in the two-dimensional case, when a phase transition is present. The observed phenomenology strongly supports, though in an indirect way, a recently proposed topological conjecture about a topology change of the configuration space submanifolds as counterpart of a phase transition.
Casetti Lapo
Franzosi Roberto
Pettini Marco
Spinelli Lionel
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