Finitely correlated states on quantum spin chains
A class of translationally invariant states on quantum spin chains, characterized by the property that the correlations across any bond can be modelled on a finite-dimensional vector space, is studied. These states are dense in the set of all translationally invariant states. A complete theory of the ergodic decomposition of these states is obtained; the ergodic components have exponential decay of correlations.
translationally invariant states on quantum spin chains
scientific article; zbMATH DE number 54755
scientific article