Linear ion trap imperfection and the compensation of excess micromotion
Xie Yi(谢艺)a)b), Wan Wei(万威)a)b), Zhou Fei(周飞)a), Chen Liang(陈亮)a), Li Chao-Hong(李朝红) c), and Feng Mang(冯芒)a)†
a. State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, and Wuhan National Laboratory for Optoelectronics, Wuhan 430071, China; b. Graduate School of the Chinese Academy of Sciences, Beijing 100049, China; c. State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
Abstract Quantum computing requires ultracold ions in a ground vibrational state, which is achieved by sideband cooling. We report our recent efforts towards the Lamb-Dicke regime which is a prerequisite of sideband cooling. We first analyse the possible imperfection in our linear ion trap setup and then demonstrate how to suppress the imperfection by compensating the excess micromotion of the ions. The ions, after the micromotion compensation, are estimated to be very close to the Doppler-cooling limit.
Fund: Project supported by the National Natural Science Foundation of China (Grants Nos. 10974225 and 11104325), the NCETPC (Grant No. NCET-10-0850), the Fundamental Research Funds for Central Universities of China, and the National Fundamental Research Program of China (Grant No. 2012CB922102).
Xie Yi(谢艺), Wan Wei(万威), Zhou Fei(周飞), Chen Liang(陈亮), Li Chao-Hong(李朝红), and Feng Mang(冯芒) Linear ion trap imperfection and the compensation of excess micromotion 2012 Chin. Phys. B 21 063201
[1]
Blatt R and Wineland D J 2008 Nature 453 1008
[2]
Monz T, Schindler P, Barreiro J T, Chwalla M, Nigg D, Coish W A, Harlander M, Haensel W, Hennrich M and Blatt R 2011 Phys. Rev. Lett. 106 130506
[3]
Zheng X J, Cao S, Fang M F and Liao X P 2008 Chin. Phys. B 17 431
[4]
Zheng S B 2005 Chin. Phys. 11 2222
[5]
Xu Y Y, Zhou F, Zhang X L and Feng M 2010 Chin. Phys. B 19 090317
[6]
Cirac J I and Zoller P 1995 Phys. Rev. Lett. 74 4091
[7]
Stenholm S 1986 Rev. Mod. Phys. 58 69
[8]
Wineland D J and Itano W M 1979 Phys. Rev. D 20 1952
[9]
Monroe C, Meekhof D M, King B E, Jefferts S R, Itano W M, Wineland D J and Gould P 1995 Phys. Rev. Lett. 75 4011
[10]
Xie Y, Zhou F, Chen L, Wan W and Feng M 2011 Chin. Phys. Lett. 28 093201
[11]
Zhou F, Xie Y, Xu Y Y, Huang X R and Feng M 2010 Chin. Phys. B 19 113206
[12]
Zhou F, Xie Y, Xu Y Y, Huang X R and Feng M 2010 Chin. Phys. Lett. 27 123203
[13]
Berkeland D J, Miller J D, Bergquist J C, Itano W M and Wineland D J 1998 J. Appl. Phys. 83 5025
[14]
Steane A 1997 Appl. Phys. B 64 623
[15]
James D F V 1998 Appl. Phys. B 66 181
[16]
Donald C 2000 Development of an Ion Trap Quantum Information Processor Ph. D. Thesis (Oxford: University of Oxford)
[17]
Urabe S, Watanabe M, Imajo H, Hayasaka K, Tanaka U and Ohmukai R 1998 Appl. Phys. B 67 223
[18]
Nagourney W, Janik G and Dehmelt H 1983 Proc. Natl. Acad. Sci. USA 88 643
[19]
Wineland D J 1987 Phys. Rev. A 36 2220
[1]
Strain compensated type II superlattices grown by molecular beam epitaxy Chao Ning(宁超), Tian Yu(于天), Rui-Xuan Sun(孙瑞轩), Shu-Man Liu(刘舒曼), Xiao-Ling Ye(叶小玲), Ning Zhuo(卓宁), Li-Jun Wang(王利军), Jun-Qi Liu(刘俊岐), Jin-Chuan Zhang(张锦川), Shen-Qiang Zhai(翟慎强), and Feng-Qi Liu(刘峰奇). Chin. Phys. B, 2023, 32(4): 046802.
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
