Dissipative dynamics of an extended magnetic nanostructure: Spin necklace in a metallic environment
Strongly Correlated Electrons
2007-05-23 v1 Mesoscale and Nanoscale Physics
Abstract
We study theoretically the dynamics of an ``xxz'' spin necklace coupled to a conduction electron sea, a model system for a nanostructure in a dissipative environment. We extract the long-time behavior via a mapping to a multichannel Coulomb gas problem followed by a scaling analysis. The strong quantum fluctuations of the necklace cause a nontrivial dependence of couplings on system size which we extract via an analysis involving the ``boundary condition changing operator'', and confirm via a detailed numerical evaluation of one case.
Keywords
Cite
@article{arxiv.cond-mat/0305534,
title = {Dissipative dynamics of an extended magnetic nanostructure: Spin necklace in a metallic environment},
author = {N. Shah and A. J. Millis},
journal= {arXiv preprint arXiv:cond-mat/0305534},
year = {2007}
}
Comments
4 pages, 4 figures