Photon-assisted electronic structure and transport for a quantum dot

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	Photon-assisted electronic structure and transport for a quantum dot
	W. H. Liao; Q. X. Gao; G. H. Zhou
	2007
发表期刊	Chinese Physics
ISSN	1009-1963
卷号	16 期号:7 页码:2106-2110
摘要	This paper investigates theoretically the electronic structure and transport of a two-level quantum dot irradiated under a strong laser field at low temperatures. Using the method of Keldysh equation of motion for nonequilibrium Green functions, it examines the time-averaged density of states and conductance for the system with photon polarization parallel with and perpendicular to the tunnelling current direction respectively. It is demonstrated that, by analysing some numerical examples, more photon sidebands resonance states and multi- and single-photon transitions are found when diagonal matrix elements dominate the interaction, while the electronic transitions due to multiphoton absorption are more or less suppressed when off-diagonal interaction dominates.
部门归属	zunyi normal coll, dept phys, zunyi 563002, peoples r china. hunan normal univ, dept phys, changsha 410081, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china.;zhou, gh (reprint author), zunyi normal coll, dept phys, zunyi 563002, peoples r china;ghzhou@hunnu.edu.cn
关键词	Quantum Dot Laser Field Density Of States Nonequilibrium Green Functions Tunneling Current Excited-state Ground-state Laser-field Side-band Wire Well Superlattices Gan
URL	查看原文
WOS记录号	WOS:000247897000051
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33674
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. H. Liao,Q. X. Gao,G. H. Zhou. Photon-assisted electronic structure and transport for a quantum dot[J]. Chinese Physics,2007,16(7):2106-2110.
APA	W. H. Liao,Q. X. Gao,&G. H. Zhou.(2007).Photon-assisted electronic structure and transport for a quantum dot.Chinese Physics,16(7),2106-2110.
MLA	W. H. Liao,et al."Photon-assisted electronic structure and transport for a quantum dot".Chinese Physics 16.7(2007):2106-2110.