1993/04/12 by A. Its, A. R. Its, A. G. Izergin +5 · 2 citations
Physics and Astronomy · #Opinion Dynamics and Social Influence #Quantum many-body systems #Theoretical and Computational Physics #cond-mat.stat-mech #quant-ph
paper · pdf · doi:10.1103/physrevlett.70.2357
published as Phys. Rev. Lett. 70 (1993) 1704-1708; Erratum Phys.Rev.Let. 70 (1993) 2357 · 8 pages
openalex publication_date 1993/04/12 · arxiv created 2009/09/25 · arxiv updated 2015/05/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
This is a historical note. In 1993 we calculated space, time and temperature dependent correlation function in isotropic version of one dimensional XY spin chain. The correlation function decays exponentially with time and space separation. The rate of exponential decay was evaluated explicitly. Since that time similar results were obtained in other models: Bose gas with delta interaction, Ising model and strongly correlated electrons.