Imaging and switching of Fano resonances in open quantum cavities

被引:19
作者
Mendoza, M [1 ]
Schulz, PA [1 ]
机构
[1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazil
关键词
D O I
10.1103/PhysRevB.71.245303
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We present a systematic numerical investigation of the imaging of states in highly transmiting open quantum dots within a Green's function method applied to a tight-binding lattice model. We show evidence that images obtained from conductance change are not bona fide images of the unperturbed probability densities, because the coupled quantum dot-tip system induces coupling between several resonances, hindering a reliable interpretation of the conductance maps. We suggest that mapping the energy shifts of the resonances may provide the necessary complementary tool for good wave function imaging in quantum billiards.
引用
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页数:6
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