Transport Control in Low-Dimensional Spin-1/2 Heisenberg Systems
Statistical Mechanics
2009-11-13 v2 Disordered Systems and Neural Networks
Quantum Physics
Abstract
We analyze transport of local magnetization and develop schemes to control transport behavior in finite spin-1/2 Heisenberg chains and spin-1/2 Heisenberg two-leg ladders at zero temperature. By adjusting parameters in the Hamiltonians, these quantum systems may show both integrable and chaotic limits. We provide examples of chaotic systems leading to diffusive and to ballistic transport. In addition, methods of coherent quantum control to induce a transition from diffusive to ballistic transport are proposed.
Cite
@article{arxiv.0805.4045,
title = {Transport Control in Low-Dimensional Spin-1/2 Heisenberg Systems},
author = {L. F. Santos},
journal= {arXiv preprint arXiv:0805.4045},
year = {2009}
}
Comments
8 pages, 5 figures