The equivalence of the logarithmic Sobolev inequality and the Dobrushin-Shlosman mixing condition

Springer Science and Business Media LLC - Tập 144 - Trang 303-323 - 1992
Daniel W. Stroock1, Boguslaw Zegarlinski1,2
12-272, Mathematics Department, M.I.T., Cambridge, USA
2Fakultät für Mathematik, Ruhr-Universität Bochum, Bochum 1, Germany

Tóm tắt

Given a finite range lattice gas with a compact, continuous spin space, it is shown (cf. Theorem 1.2) that a uniform logarithmic Sobolev inequality (cf. 1.4) holds if and only if the Dobrushin-Shlosman mixing condition (cf. 1.5) holds. As a consequence of our considerations, we also show (cf. Theorems 3.2 and 3.6) that these conditions are equivalent to a statement about the uniform rate at which the associated Glauber dynamics tends to equilibrium. In this same direction, we show (cf. Theorem 3.19) that these ideas lead to a surprisingly strong large deviation principle for the occupation time distribution of the Glauber dynamics.

Tài liệu tham khảo

[A&H] Aizenman, M., Holley, R.: Rapid convergence to equilibrium of stochastic Ising Models in the Dobrushin Shlosman régime, Percolation Theory and Ergodic Theory of Infinite Particle Systems, H. Kesten, (ed.), IMS Volumes in Math. and Appl. vol.8, pp. 1–11. Berlin, Heidelberg, New York: Springer 1987 [D] Dobrushin, R.: Markov processes with a large number of locally interacting components-Existence of the limiting process and its ergodicity. Probl. Peredaci Inform.7, 70–87 (1971) [D&S] Deuschel, J.-D., Stroock, D.: Large Deviations, Pure and Appl. Math. Series, vol.137. Boston: Academic Press 1989 [Dob&S,1] Dobrushin, R.L., Shlosman, S.B.: Constructive criterion for the uniqueness of Gibbs field, Statistical Physics and Dynamical Systems, Rigorous Results, pp. 347–370. Fritz, Jaffe, and Szasz (eds.). Basel-Boston: Birkhauser 1985 [Dob&S,2] —: Completely analytical Gibbs fields. Statistical Physics and Dynamical Systems, Rigorous Results, pp. 371–403. Fritz, Jaffe, and Szasz, (eds.), Basel-Boston: Birkhäuser 1985 [Dob&S,3] —: Completely analytical interactions: Constructive description. J. Stat. Phys.46, 983–1014 (1987) [F] Federbush, P.: Partially alternative derivation of a result of Nelson. J. Math. Phys.10 (1), 50–52 (1989) [G, 1] Gross, L.: Logarithmic Sobolev inequalities. Am. J. Math.97, 553–586 (1979) [G, 2] —: Absence of second-order phase transitions in the Dobrushin uniqueness region. J. Stat. Phys.25 (1), 57–72 (1981) [H] Holley, R.: Possible rates of convergence in finite range, attractive spin systems. Contemp. Math.41, 215–234 (1985) [H&S, 1] Holley, R., Stroock, D.: Applications of the stochastic Ising Model to the Gibbs states. Commun. Math. Phys.48, 249–265 (1967) [H&S, 2] —: Uniform andL 2 convergence in one dimensional stochastic ising models. Commun. Math. Phys.123, 85–93 (1989) [L] Liggett, T.: Infinite Particle Systems. Grundlehren Series, vol.276, Berlin, Heidelberg, New York: Springer 1985 [S&Z] Stroock, D., Zegarlinski, B.: The logarithmic Sobolev inequality for lattice gases with continuous spins. J. Funct. Anal. (to appear)