Ising Ferromagnet: Zero-Temperature Dynamic Evolution

Details Ising Ferromagnet: Zero-Temperature Dynamic Evolution Ising Ferromagnet: Zero-Temperature Dynamic Evolution

2006-05-09

arxiv.org/abs/physics/0605077v1

J. Phys. A (2006)

Physics

Computational Physics

14 pages, Latex with 8 EPS figures

Scientific paper

10.1088/0305-4470/39/22/002

The dynamic evolution at zero temperature of a uniform Ising ferromagnet on a square lattice is followed by Monte Carlo computer simulations. The system always eventually reaches a final, absorbing state, which sometimes coincides with a ground state (all spins parallel), and sometimes does not (parallel stripes of spins up and down). We initiate here the numerical study of ``Chaotic Time Dependence'' (CTD) by seeing how much information about the final state is predictable from the randomly generated quenched initial state. CTD was originally proposed to explain how nonequilibrium spin glasses could manifest equilibrium pure state structure, but in simpler systems such as homogeneous ferromagnets it is closely related to long-term predictability and our results suggest that CTD might indeed occur in the infinite volume limit.

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