Large deviations for the macroscopic motion of an interface

Birmpa, P., Dirr, N. ORCID: https://orcid.org/0000-0003-3634-7367 and Tsagkarogiannis, D. 2017. Large deviations for the macroscopic motion of an interface. Journal of Statistical Physics 166 , pp. 1163-1192. 10.1007/s10955-017-1720-3

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Abstract

We study the most probable way an interface moves on a macroscopic scale from an initial to a final position within a fixed time in the context of large deviations for a stochastic microscopic lattice system of Ising spins with Kac interaction evolving in time according to Glauber (non-conservative) dynamics. Such interfaces separate two stable phases of a ferromagnetic system and in the macroscopic scale are represented by sharp transitions. We derive quantitative estimates for the upper and the lower bound of the cost functional that penalizes all possible deviations and obtain explicit error terms which are valid also in the macroscopic scale. Furthermore, using the result of a companion paper about the minimizers of this cost functional for the macroscopic motion of the interface in a fixed time, we prove that the probability of such events can concentrate on nucleations should the transition happen fast enough.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Mathematics
Additional Information:	This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Publisher:	Springer Verlag
ISSN:	0022-4715
Date of First Compliant Deposit:	9 February 2017
Date of Acceptance:	11 January 2017
Last Modified:	03 May 2023 21:30
URI:	https://orca.cardiff.ac.uk/id/eprint/98187

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