Nonlocal behaviors of spin correlations in the Haldane-Shastry model

Publication date: Available online 8 October 2019Source: Physics Letters AAuthor(s): Maowen Tang, Yan HeAbstractThe nonlocal factors of spin correlations are introduced for lattice spin models. Based on this concept, we investigate the nonlocal behavior of the Haldane-Shastry model with or without ring frustration. The ground state and spin correlations of the Haldane-Shastry model are calculated for both even and odd number of spins, then the nonlocal factors can be deduced analytically. It is found that the nonlocal factor due the ring frustration is the same as the Heisenberg model.

Source: Physics Letters A - October 10, 2019 Category: Physics Source Type: research