Two-sites’ spin chain as a good statistical representative of an infinite one

Abstract

We apply information-theory based symbolic quantifiers, related to complexity studies, in order to investigate interacting spin chains, in which there is competition between one-body and two-body quantum interactions. Our system of reference is a well-known XY model with N-spins. We show that most of its thermal features can already be detected with N=2.

Keywords

• Complexity studies
• Symbolic quantifiers
• Few-fermions’ system