Quantum-to-classical correspondence in two-dimensional Heisenberg models

Tao Wang, Xiansheng Cai, Kun Chen, Nikolay V. Prokof'ev, and Boris V. Svistunov
Phys. Rev. B 101, 035132 – Published 17 January 2020

Abstract

The quantum-to-classical correspondence (QCC) in spin models is a puzzling phenomenon where the static susceptibility of a quantum system agrees with its classical-system counterpart, at a different corresponding temperature, within the systematic error at a subpercent level. We employ the bold diagrammatic Monte Carlo method to explore the universality of QCC by considering three different two-dimensional spin-1/2 Heisenberg models. In particular, we reveal the existence of QCC in models with two parameters.

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  • Received 29 April 2019
  • Revised 30 September 2019

DOI:https://doi.org/10.1103/PhysRevB.101.035132

©2020 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Tao Wang1, Xiansheng Cai1, Kun Chen2, Nikolay V. Prokof'ev1,3, and Boris V. Svistunov1,3,4

  • 1Department of Physics, University of Massachusetts, Amherst, Mafssachusetts 01003, USA
  • 2Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854, USA
  • 3National Research Center “Kurchatov Institute,” 123182 Moscow, Russia
  • 4Wilczek Quantum Center, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China

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Issue

Vol. 101, Iss. 3 — 15 January 2020

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