The notion of symmetric states is extended in such a way as to include the description of non-translation invariant mean field systems. A complete characterization of such states is given by means of non-translation invariant product states.
Cite this article
Mark Fannes, Non-translation Invariant Product States of Classical Lattice Systems. Publ. Res. Inst. Math. Sci. 23 (1987), no. 5, pp. 895–908DOI 10.2977/PRIMS/1195176037