%0 Journal Article
%T Electron transport for a laser-irradiated quantum channel with Rashba spin--orbit coupling<br>Electron transport for a laser-irradiated quantum channel with Rashba spin-orbit coupling
%A Zhao Hu
%A Liao Wen-Hu
%A Zhou Guang-Hui
%A <br>赵华
%A 廖文虎
%A 周光辉
%J 中国物理 B
%D 2007
%I 
%X We investigate theoretically the electron transport for a two-level quantum channel (wire) with Rashba spin--orbit coupling under the irradiation of a longitudinally-polarized external laser field at low temperatures. Using the method of equation of motion for Keldysh nonequilibrium Green function, we examine the time-averaged spin polarized conductance for the system with photon polarization parallel to the wire direction. By analytical analysis and a few numerical examples, the interplay effects of the external laser field and the Rashba spin--orbit coupling on the spin-polarized conductance for the system are demonstrated and discussed. It is found that the longitudinally-polarized laser field can adjust the spin polarization rate and produce some photon sideband resonances of the conductance for the system.
%K Rashba quantum wire
%K laser field
%K spin-polarized transport
%K nonequilibrium Green function<br>Rashba量子线
%K 自旋轨道耦合
%K 激光照射
%K 量子沟道
%K 电子传输
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=51EC29F0F1FE4796B73B8D2C8A9780A3&yid=A732AF04DDA03BB3&vid=7801E6FC5AE9020C&iid=B31275AF3241DB2D&sid=3C4D8AE76F4902FF&eid=3E25A065A8F8B129&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=25