Presence of energy flux in quantum spin chains: An experimental signature

Authors
Racz, Z
Citation
Z. Racz, Presence of energy flux in quantum spin chains: An experimental signature, J STAT PHYS, 101(1-2), 2000, pp. 273-281
Citations number
24
Categorie Soggetti
Physics
Journal title
JOURNAL OF STATISTICAL PHYSICS
ISSN journal
00224715 → ACNP
Volume
101
Issue
1-2
Year of publication
2000
Pages
273 - 281
Database
ISI
SICI code
0022-4715(200010)101:1-2<273:POEFIQ>2.0.ZU;2-P
Abstract
Using the XXZ model for the description of one-dimensional magnetic materia ls we show that an energy flux, j(E) produces a shift, deltak similar to ro otj(E), in the characteristic wavenumber of the spin-spin correlations. We estimate deltak for a realistic experimental setup and find that it is meas urable in inelastic neutron scattering experiments.