%0 Journal Article
%T Photon-Assisted Conductance Structure for a Quantum Dot
%A LIAO Wen-Hu
%A GAO Qin-Xiang
%A ZHOU Guang-Hui
%A <br>廖文虎
%A 高钦翔
%A 周光辉
%J 中国物理快报
%D 2007
%I 
%X We investigate theoretically the electron transport of a two-level quantum dot irradiated under a weak laser field at low temperatures in the rotating wave approximation. Using the method of the Keldysh equation of motion for nonequilibrium Green function, we examine the conductance for the system with photon polarization perpendicular to the tunnelling current direction. It is demonstrated that by analytic analysing and numerical examples, a feature of conductance peak splitting appears, and the dependence of conductance on the incident laser frequency and self-energy are discussed.
%K 73
%K 23
%K -b
%K 73
%K 21
%K La
%K 78
%K 67
%K Hc<br>光子辅助
%K 电导率
%K 电子结构
%K 量子
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=A6F1F92187EC7BB834300EBFDD107A59&yid=A732AF04DDA03BB3&vid=B91E8C6D6FE990DB&iid=CA4FD0336C81A37A&sid=AC1578C6BB9EBDEF&eid=5D9D6A8FC2C66FD8&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=0