Aharonov-Casher phase and persistent current in a polyacetylene ring
凝聚态物理
2009-11-07 v1
摘要
We investigate a polyacetylene ring in an axially symmetric, static electric field with a modified SSH Hamiltonian of a polyacetylene chain. An effective gauge potential of the single electron Hamiltonian due to spin-field interaction is obtained and it results in a Fr\"{o}hlich's type of superconductivity equivalent to the effect of travelling lattice wave. The total energy as well as the persistent current density are shown to be a periodic function of the flux of the gauge field embraced by the polyacetylene ring.
引用
@article{arxiv.cond-mat/0111446,
title = {Aharonov-Casher phase and persistent current in a polyacetylene ring},
author = {Zhijian Li and J. Q. Liang and F. -C. Pu},
journal= {arXiv preprint arXiv:cond-mat/0111446},
year = {2009}
}
备注
12 pages, 5 figures