Symmetry-Breaking Assisted Landau-Zener Transitions in Rydberg Atoms

doi:10.1103/PhysRevLett.120.063203

	Symmetry-Breaking Assisted Landau-Zener Transitions in Rydberg Atoms
	Zhang, S. S.2,3; Gao, W.2,3; Cheng, H.2,3; You, L.1,4; Liu, H. P.2,3
刊名	PHYSICAL REVIEW LETTERS
	2018-02-08
卷号	120 期号:6
ISSN号	0031-9007
DOI	10.1103/PhysRevLett.120.063203
文献子类	Article
英文摘要	We report the observation of a controlled Landau-Zener transition (LZT) in Rydberg atoms by breaking the symmetry of the underlying Hamiltonian. For a nonhydrogenic Rydberg atom inside a changing electric (F) field, a LZT occurs between the avoided crossing energy levels of neighboring Rydberg states only for a sufficiently high changing rate. If a transverse magnetic (B) field is applied as we implement, the atomic level symmetry is broken, which causes the Stark manifolds denoted by a different vertical bar m vertical bar (m is the magnetic quantum number) to interact with each other. The mixed state levels end up pushing the adiabatically repelled target states closer and additionally they serve as stepping stones for the sequential LZTs between the neighboring sublevels. Such a feature significantly decreases the changing rate required for an efficient LZT inside a pure electric field. We report experimental observations that support the above scenario. It opens a versatile approach for engineering a controlled LZT in more general systems.
WOS关键词	SUPERCONDUCTING QUBIT ; FIELD-IONIZATION ; R-MATRIX ; STATES ; TRANSISTOR ; MOLECULES ; SPECTRA ; STARK ; WIRE ; BA
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000424507800013
资助机构	National Natural Science Foundation of China(91121005 ; National Natural Science Foundation of China(91121005 ; MOST of the National Key Basic Research Program of China(2013CB922003) ; MOST of the National Key Basic Research Program of China(2013CB922003) ; 91421305 ; 91421305 ; 11674359 ; 11674359 ; 11374176) ; 11374176) ; National Natural Science Foundation of China(91121005 ; National Natural Science Foundation of China(91121005 ; MOST of the National Key Basic Research Program of China(2013CB922003) ; MOST of the National Key Basic Research Program of China(2013CB922003) ; 91421305 ; 91421305 ; 11674359 ; 11674359 ; 11374176) ; 11374176) ; National Natural Science Foundation of China(91121005 ; National Natural Science Foundation of China(91121005 ; MOST of the National Key Basic Research Program of China(2013CB922003) ; MOST of the National Key Basic Research Program of China(2013CB922003) ; 91421305 ; 91421305 ; 11674359 ; 11674359 ; 11374176) ; 11374176) ; National Natural Science Foundation of China(91121005 ; National Natural Science Foundation of China(91121005 ; MOST of the National Key Basic Research Program of China(2013CB922003) ; MOST of the National Key Basic Research Program of China(2013CB922003) ; 91421305 ; 91421305 ; 11674359 ; 11674359 ; 11374176) ; 11374176)
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/12870]
专题	中国科学院武汉物理与数学研究所
通讯作者	Liu, H. P.
作者单位	1.Collaborat Innovat Ctr Quantum Matter, Beijing 100084, Peoples R China 2.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Hubei, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Tsinghua Univ, Dept Phys, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Zhang, S. S.,Gao, W.,Cheng, H.,et al. Symmetry-Breaking Assisted Landau-Zener Transitions in Rydberg Atoms[J]. PHYSICAL REVIEW LETTERS,2018,120(6).
APA	Zhang, S. S.,Gao, W.,Cheng, H.,You, L.,&Liu, H. P..(2018).Symmetry-Breaking Assisted Landau-Zener Transitions in Rydberg Atoms.PHYSICAL REVIEW LETTERS,120(6).
MLA	Zhang, S. S.,et al."Symmetry-Breaking Assisted Landau-Zener Transitions in Rydberg Atoms".PHYSICAL REVIEW LETTERS 120.6(2018).