Zeros of the partition function and pseudospinodals in long-range Ising models.
The relation between the zeros of the partition function and spinodal critical points in Ising models with long-range interactions is investigated. We find that the spinodal is associated with the zeros of the partition function in four-dimensional complex temperature/magnetic field space. The zeros approach the real temperature/magnetic field plane as the range of interaction increases.
Gulbahce
Natali
N
Department of Physics, Clark University, Worcester, Massachusetts 01610, USA.
Gould
Harvey
H
Klein
W
W