Quantum dynamics in driven sawtooth lattice under uniform magnetic field

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	Quantum dynamics in driven sawtooth lattice under uniform magnetic field
	Cai, Xiaoming 1,2; Chen, Shu 1; Wang, Yupeng 1
刊名	PHYSICAL REVIEW A
	2013-01-09
卷号	87 期号:1
英文摘要	We study the Bloch-Zener oscillation, which is a superposition of Bloch oscillation and Landau-Zener tunneling between Bloch bands, for a quantum particle in a frustrated sawtooth lattice with and without uniform magnetic field. Under the single-band tight-binding approximation, the sawtooth lattice is a two-miniband system and may have a flat band structure. The presence of magnetic field can make the gap between two minibands close, and around the touch point the dispersion is an asymmetric Dirac cone. We analyze in detail the Landau-Zener tunneling and Bragg scattering in the Bloch-Zener oscillation and the effect of magnetic field. Our results also give a clear picture of the dynamical localization in real space induced by the flat band structure of the lattice. DOI: 10.1103/PhysRevA.87.013607
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Optics ; Physics, Atomic, Molecular & Chemical
研究领域[WOS]	Optics ; Physics
关键词[WOS]	OPTICAL BLOCH OSCILLATIONS ; ZENER OSCILLATIONS ; RABI OSCILLATIONS ; CHAIN ; ANTIFERROMAGNET ; ARRAYS ; MODELS ; BANDS
收录类别	SCI
语种	英语
WOS记录号	WOS:000313329900007
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/798]
专题	武汉物理与数学研究所_理论与交叉研究部
作者单位	1.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China
推荐引用方式 GB/T 7714	Cai, Xiaoming,Chen, Shu,Wang, Yupeng. Quantum dynamics in driven sawtooth lattice under uniform magnetic field[J]. PHYSICAL REVIEW A,2013,87(1).
APA	Cai, Xiaoming,Chen, Shu,&Wang, Yupeng.(2013).Quantum dynamics in driven sawtooth lattice under uniform magnetic field.PHYSICAL REVIEW A,87(1).
MLA	Cai, Xiaoming,et al."Quantum dynamics in driven sawtooth lattice under uniform magnetic field".PHYSICAL REVIEW A 87.1(2013).