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Temperature Of Nonequilibrium Lattice Systems

Author

Listed:
  • ALBERTO PETRI

    (CNR - Istituto dei Sistemi Complessi, via del Fosso del Cavaliere 100, 00133 Roma, Italy)

  • M. J. DE OLIVEIRA

    (Instituto de Física, Universidade de São Paulo, Caixa Postal 66318, 05315-970 São Paulo, São Paulo, Brazil)

Abstract

We investigate the thermal quench of Ising and Potts models via Monte Carlo dynamics. We find that the local distribution of the site-site interaction energy has the same form as in the equilibrium case, a result that allows us to define an instantaneous temperature θ during the systems relaxation. We also find that, after an undercritical quench, θ equals the heat bath temperature in a finite time, while the total system energy is still decreasing due to the coarsening process.

Suggested Citation

  • Alberto Petri & M. J. De Oliveira, 2006. "Temperature Of Nonequilibrium Lattice Systems," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 17(12), pages 1703-1715.
    • Handle: RePEc:wsi:ijmpcx:v:17:y:2006:i:12:n:s012918310601011x
    DOI: 10.1142/S012918310601011X
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