Floquet Topological Insulator in the BHZ Model with the Polarized Optical Field

	Floquet Topological Insulator in the BHZ Model with the Polarized Optical Field
	Zhu H. X.; Wang T. T.; Gao J. S.; Li S. A.; Sun Y. J.; Liu G. L.
	2014
发表期刊	中文 Physics Letters
ISSN	ISBN/0256-307X
卷号	31 期号:3 页码:4
摘要	Topological phase of newly found matter has aroused wide interests, especially related with the external periodical modulating. With the help of the Floquet theory, we investigate the possibility of externally manipulating the topological property in a HgTe/CdTe quantum well system with the polarized optical field. We give the phase diagram, showing that by modulating the parameters of the polarized optical field, especially the phase, the topological phase transition can be realized in the QW and lead to the so-called Floquet topological insulator. When the optical field is weak, the driven QSH state of QW is robust with the optical field. However, when the optical field is relatively larger, the group velocity of edge states and the gap between the bulk states exhibit certain oscillations. The implications of our results are discussed.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/43999
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Zhu H. X.,Wang T. T.,Gao J. S.,et al. Floquet Topological Insulator in the BHZ Model with the Polarized Optical Field[J]. 中文 Physics Letters,2014,31(3):4.
APA	Zhu H. X.,Wang T. T.,Gao J. S.,Li S. A.,Sun Y. J.,&Liu G. L..(2014).Floquet Topological Insulator in the BHZ Model with the Polarized Optical Field.中文 Physics Letters,31(3),4.
MLA	Zhu H. X.,et al."Floquet Topological Insulator in the BHZ Model with the Polarized Optical Field".中文 Physics Letters 31.3(2014):4.

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