Abstract:
We consider Ising-spin systems starting from an initial Gibbs measure ν and evolving under a spin-flip dynamics towards a reversible Gibbs measure μ≠ν. Both ν and μ are assumed to have a translation-invariant finite-range interaction. We study the Gibbsian character of the measure νS(t) at time t and show the following:
(1) For all ν and μ, νS(t) is Gibbs for small t.
(2) If both ν and μ have a high or infinite temperature, then νS(t) is Gibbs for all t > 0.
(3) If ν has a low non-zero temperature and a zero magnetic field and μ has a high or infinite temperature, then νS(t) is Gibbs for small t and non-Gibbs for large t.
(4) If ν has a low non-zero temperature and a non-zero magnetic field and μ has a high or infinite temperature, then νS(t) is Gibbs for small t, non-Gibbs for intermediate t, and Gibbs for large t.
The regime where μ has a low or zero temperature and t is not small remains open. This regime presumably allows for many different scenarios.
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Received: 26 April 2001 / Accepted: 10 October 2001
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van Enter, A., Fernández, R., den Hollander, F. et al. Possible Loss and Recovery of Gibbsianness¶During the Stochastic Evolution of Gibbs Measures. Commun. Math. Phys. 226, 101–130 (2002). https://doi.org/10.1007/s002200200605
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DOI: https://doi.org/10.1007/s002200200605