English

Nonadditive entropy for random quantum spin-S chains

Quantum Physics 2015-05-14 v2 Statistical Mechanics

Abstract

We investigate the scaling of Tsallis entropy in disordered quantum spin-S chains. We show that an extensive scaling occurs for specific values of the entropic index. Those values depend only on the magnitude S of the spins, being directly related with the effective central charge associated with the model.

Keywords

Cite

@article{arxiv.0912.3718,
  title  = {Nonadditive entropy for random quantum spin-S chains},
  author = {A. Saguia and M. S. Sarandy},
  journal= {arXiv preprint arXiv:0912.3718},
  year   = {2015}
}

Comments

5 pages, 7 figures. v3: Minor corrections and references updated. Published version

R2 v1 2026-06-21T14:25:47.233Z