%0 Journal Article
%T Time-delayed feedback control of chaos in a GaAs/AlGaAs heterostructure<br>延迟反馈法控制GaAs/AlGaAs中的混沌
%A Yang Gui
%A Zhao Xueting
%A <br>杨癸
%A 赵雪婷
%J 半导体学报
%D 2010
%I 
%X A theoretical model has been developed to study nonlinear behaviors in a GaAs/AlGaAs heterostructure. We show that the system can exhibit chaotic oscillations under transverse magnetic fields and an electric field. The time-delayed feedback method was applied to stabilize the unstable periodic orbits (UPOs) embedded in the chaotic attractor. A bifurcation specified by a successive decrease in the number of UPOs with delayed time and feedback strength was revealed, indicating the stabilization of UPOs under feedback control. Noticeably, the introduction of a feedback perturbation will sometimes induce chaotic states that do not exist in the unperturbed system.
%K chaos
%K feedback strength
%K delayed time<br>混沌，反馈强度，反馈时间
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=025C8057C4D37C4BA0041DC7DE7C758F&aid=974ECC95FD0AB666760E3E9C61B396B0&yid=140ECF96957D60B2&vid=4AD960B5AD2D111A&iid=94C357A881DFC066&sid=EE3F0AF544CD2E72&eid=94C357A881DFC066&journal_id=1674-4926&journal_name=半导体学报&referenced_num=0&reference_num=2