Document Type
Article
Date of Original Version
7-18-1983
Abstract
New exact results are presented on the long-time asymptotic expansions of the T = 0 autocorrelation functions, and on the leading singularities of their frequency-dependent Fourier transforms, for the one-dimensional S = ½ isotropic XY model and the S = ½ transverse Ising model at the critical field. High-precision numerical calculations of the latter functions are also given, and experiments are proposed to observe the functional behaviors that are found.
Citation/Publisher Attribution
Gerhard Müller and Robert E. Shrock. Dynamic correlation functions for quantum spin chains. Phys. Rev. Lett. 51 (1983), 219-222.
Available at: http://dx.doi.org/10.1103/PhysRevLett.51.219
Terms of Use
All rights reserved under copyright.
Publisher Statement
© Copyright 1983 of the American Physical Society