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在量子物理领域的研究中, 量子控制是必不可少的. 精确高效的量子控制, 是利用量子系统进行实验研究的前提, 也是量子计算、量子传感等应用的基础. 金刚石氮-空位色心作为固态自旋体系在室温下相干时间长, 可用光学方法实现初始化和读出, 通过微波射频场能实现普适的量子控制, 是研究量子物理的优秀实验平台. 本文从量子控制出发介绍金刚石氮-空位色心体系在量子物理领域取得的代表性成果, 主要讨论了1) 金刚石氮-空位色心的物理性质和量子控制原理, 2)氮-空位色心的退相干机制, 3)单自旋量子控制的相关应用及最近的研究进展.In the field of quantum physics, quantum control is essential. Precise and efficient quantum control is a prerequisite for the experimental research using quantum systems, and it is also the basis for applications such as in quantum computing and quantum sensing. As a solid-state spin system, the nitrogen-vacancy (NV) center in diamond has a long coherence time at room temperature. It can be initialized and read out by optical methods, and can achieve universal quantum control through the microwave field and radio frequency fields. It is an excellent experimental platform for studying quantum physics. In this review, we introduce the recent results of quantum control in NV center and discuss the following parts: 1) the physical properties of the NV center and the realization method of quantum control, 2) the decoherence mechanism of the NV center spin qubit, and 3) the application of single-spin quantum control and relevant research progress.
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Keywords:
- quantum control /
- quantum logic gate /
- nitrogen-vacancy center in diamond /
- parity-time symmetry
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[9] 伍旸 2020 博士学位论文 (合肥: 中国科学技术大学)
Wu Y 2020 Ph. D. Dissertation (Hefei: University of Science and Technology of China) (in Chinese)
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[11] Acosta V M, Jarmola A, Bauch E, Budker D 2010 Phys. Rev. B 82 201202Google Scholar
[12] Loubser J, van Wyk J 1978 Rep. Prog. Phys. 41 1201Google Scholar
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[14] Nizovtsev A P, Kilin S Y, Jelezko F, Popa I, Gruber A, Tietz C, Wrachtrup J 2003 Opt. Spectrosc. 94 848Google Scholar
[15] Van der Sar T, Wang Z H, Blok M S, Bernien H, Taminiau T H, Toyli D M, Lidar D A, Awschalom D D, Hanson R, Dobrovitski V V 2012 Nature 484 82Google Scholar
[16] Weil J A, Bolton J R 2007 Electron Paramagnetic Resonance: Elementary Theory and Practical Applications (Hoboken: John Wiley & Sons, Inc.)
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[18] Rong X, Geng J P, Shi F Z, Liu Y, Xu K B, Ma W C, Kong F, Jiang Z, Wu Y, Du J F 2015 Nat. Commun. 6 8748Google Scholar
[19] De Raedt H, Barbara B, Miyashita S, Michielsen K, Bertaina S, Gambarelli S 2012 Phys. Rev. B 85 014408Google Scholar
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[37] Nielsen M A, Chuang I L 2000 Quantum Computing and Quantum Information (Cambridge: Cambridge University Press)
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[40] Bando M, Ichikawa T, Kondo Y, Nakahara M 2013 J. Phys. Soc. Japan 82 014004
[41] Cummins H K, Llewellyn G, Jones J A 2003 Phys. Rev. A 67 042308Google Scholar
[42] Knill E, Leibfried D, Reichle R, Britton J, Blakestad R B, Jost J D, Langer C, Ozeri R, Seidelin S, Wineland D J 2008 Phys. Rev. A 77 012307Google Scholar
[43] Fowler A G, Mariantoni M, Martinis J M, Cleland A N 2012 Phys. Rev. A 86 032324Google Scholar
[44] Zermelo E 1931 Z. Angew. Math. Mech. 11 114Google Scholar
[45] Wang X T, Allegra M, Jacobs K, Lloyd S, Lupo C, Mohseni M 2015 Phys. Rev. Lett. 114 170501Google Scholar
[46] Barends R, Kelly J, Megrant A, Veitia A, Sank D, Jeffrey E, White T C, Mutus J, Fowler A G, Campbell B, Chen Y, Chen Z, Chiaro B, Dunsworth B, Neill C, O'Malley P, Roushan P, Vainsencher A, Wenner J, Korotkov A N, Cleland A N, Martinis J M 2014 Nature 508 500Google Scholar
[47] Nielsen M A, Chuang I L 1997 Phys. Rev. Lett. 79 321Google Scholar
[48] Kim J, Cheong Y, Lee J S, Lee S 2001 Phys. Rev. A 65 012302Google Scholar
[49] Vidal G, Masanes L, Cirac J I 2002 Phys. Rev. Lett. 88 047905Google Scholar
[50] Shende V V, Markov I L, Bullock S S 2004 Phys. Rev. A 69 062321
[51] Bender C M, Boettcher S 1998 Phys. Rev. Lett. 80 5243Google Scholar
[52] Bender C M, Brody D C, Jones H F 2002 Phys. Rev. Lett. 89 270401Google Scholar
[53] Bender C M 2007 Rep. Prog. Phys. 70 947Google Scholar
[54] Mostafazadeh A 2005 J. Math. Phys. 46 102108Google Scholar
[55] Dorey P, Dunning C, Lishman A, Tateo R 2009 J. Phys. A: Math. Theor. 42 465302
[56] Gong J, Wang Q 2013 J. Phys. A: Math. Theor. 46 485302
[57] Kunst F K, Edvardsson E, Budich J C, Bergholtz E J 2018 Phys. Rev. Lett. 121 026808Google Scholar
[58] Song F, Yao S Y, Wang Z 2019 Phys. Rev. Lett. 123 170401Google Scholar
[59] Gong Z, Ashida Y, Kawabata K, Takasan K, Higashikawa S, Ueda M 2018 Phys. Rev. X 8 031079
[60] Özdemir Ş K, Rotter S, Nori F, Yang L 2019 Nat. Mater. 18 783Google Scholar
[61] Miri M-A, Alù A 2019 Science 363 eaar7709
[62] Bender N, Factor S, Bodyfelt J D, Ramezani H, Christodoulides D N, Ellis F M, Kottos T 2013 Phys. Rev. Lett. 110 234101Google Scholar
[63] Assawaworrarit S, Yu X, Fan S 2017 Nature 546 387Google Scholar
[64] Choi Y, Hahn C, Yoon J W, Song S H 2018 Nat. Commun. 9 2182
[65] Bittner S, Dietz B, Günther U, Harney H L, Miski-Oglu M, Richter A, Schäfer F 2012 Phys. Rev. Lett. 108 024101Google Scholar
[66] Bender C M, Berntson B K, Parker D, Samuel E 2013 Am. J. Phys. 81 173Google Scholar
[67] Zhu X F, Ramezani H, Shi C Z, Zhu J, Zhang X 2014 Phys. Rev. X 4 031042
[68] Popa B I, Cummer S A 2014 Nat. Commun. 5 3398
[69] Fleury R, Sounas D, Alù A 2015 Nat. Commun. 6 5905
[70] Li J M, Harter A K, Liu J, de Melo L, Joglekar Y N, Luo L 2019 Nat. Commun. 10 855
[71] Naghiloo M, Abbasi M, Joglekar Y N, Murch K W 2019 Nat. Phys. 15 1232Google Scholar
[72] Liu W Q, Wu Y, Duan C K, Rong X, Du J F 2021 Phys. Rev. Lett. 126 170506Google Scholar
[73] Lau H K, Clerk A A 2018 Nat. Commun. 9 4320
[74] Chen C, Jin L, Liu R B 2019 New J. Phys. 21 083002Google Scholar
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图 2 金刚石NV色心能级结构[9] (a) NV色心的基态、激发态和亚稳态; (b) NV色心基态的精细结构和14N核带来的超精细结构
Fig. 2. Energy level diagram of the NV center in diamond[9]: (a) Ground state, excited state and metastable state of the NV center; (b) fine structure and hyperfine structure (caused by 14N nuclear spin) of the NV center ground state.
图 4 操控场噪声下NV色心的退相干[18] (a) 电子自旋的拉比振荡, 插图为实验脉冲序列; (b) 准静态操控场噪声
$ \delta_1 $ 的分布$ P(\delta_1 $ )Fig. 4. Decoherence of the NV center under control field noise[18]: (a) Results of the nutation experiment for the electron spin, the inset is the experimental pulse sequence; (b) probability density distribution of
$ \delta_1 $ .图 11 时间最优量子控制和欧拉转动实现单比特操控
$ R(\hat{z}, \theta) $ 花费时间对比[21] (a) 转角$ \theta $ 分别为$ \pi/8 $ ,$ \pi/4 $ ,$ \pi/2 $ 和$ \pi $ 时, 实现单比特操控$ R(\hat{z}, \theta) $ 耗时对比; (b) 时间最优量子控制和欧拉转动下量子态的演化过程Fig. 11. Comparison on time costs for target gate operator
$ R(\hat{z}, \theta) $ between the derived time-optimal control (TOC) and the Euler rotations[21]: (a) Comparison of experimental gate time for$ \theta = \pi/8 $ ,$ \pi/4 $ ,$ \pi/2 $ , and$ \pi $ ; (b) state evolutions during$ R(\hat{z}, \theta) $ with TOC and Euler rotation.图 16 量子态在PT对称哈密顿量
$ H_{PT} $ 下的演化[23] (a)$ r $ = 0, 厄米哈密顿量; (b)$ r $ = 0.6, PT对称非破缺; (c)$ r $ = 1.0, 奇异点; (d)$ r $ = 1.4, PT对称破缺时的情况Fig. 16. State evolution under
$ H_{PT} $ [23]. Experimental dynamics of renormalized population$ P_0 $ when$ r $ = 0 (a),$ r $ = 0.6 (b),$ r $ = 1.0 (c), and$ r $ = 1.4 (d).表 1 不同量子逻辑门序列下末态保真度的偏差随
${\delta_0}/{\omega_1}$ 的阶数关系[20]Table 1. Infidelity of quantum gate for different pulses as a function of
${\delta_0}/{\omega_1}$ [20].脉冲序列 末态保真度偏差 普通方波脉冲 $0.5(\delta_0/\omega_1)^2+O(\delta_0/\omega_1)^4$ 3-piece SUPCODE脉冲 $11.1(\delta_0/\omega_1)^4+O(\delta_0/\omega_1)^6$ 5-piece SUPCODE脉冲 $64.1(\delta_0/\omega_1)^6+O(\delta_0/\omega_1)^8$ -
[1] Kastner M A 1992 Rev. Mod. Phys. 64 849Google Scholar
[2] Yoneda J, Takeda K, Otsuka T, Nakajima T, Delbecq M R, Allison G, Honda T, Kodera T, Oda S, Hoshi Y, Usami N, Itoh K M, Tarucha S 2018 Nat. Nanotechnol. 13 102Google Scholar
[3] Huang W, Yang C H, Chan K W, Tanttu T, Hensen B, Leon R C C, Fogarty M A, Hwang J C C, Hudson F E, Itoh K M, Morello A, Laucht A, Dzurak A S 2019 Nature 569 532Google Scholar
[4] Yang A, Steger M, Sekiguchi T, Thewalt M L W, Ladd T D, Itoh K M, Riemann H, Abrosimov N V, Becker P, Pohl H J 2009 Phys. Rev. Lett. 102 257401Google Scholar
[5] He Y, Gorman S K, Keith D, Kranz L, Keizer J G, Simmons M Y 2019 Nature 571 371Google Scholar
[6] Doherty M W, Manson N B, Delaney P, Jelezko F, Wrachtrup J, Hollenberg L C L 2013 Phys. Rep. 528 1Google Scholar
[7] Dobrovitski V V, Fuchs G D, Falk A L, Santori C, Awschalom D D 2013 Annu. Rev. Condens. Matter Phys. 4 23Google Scholar
[8] Rembold P, Oshnik N, Müller M M, Montangero S, Calarco T, Neu E 2020 AVS Quantum Sci. 2 024701Google Scholar
[9] 伍旸 2020 博士学位论文 (合肥: 中国科学技术大学)
Wu Y 2020 Ph. D. Dissertation (Hefei: University of Science and Technology of China) (in Chinese)
[10] Gali A, Fyta M, Kaxiras E 2008 Phys. Rev. B 77 155206Google Scholar
[11] Acosta V M, Jarmola A, Bauch E, Budker D 2010 Phys. Rev. B 82 201202Google Scholar
[12] Loubser J, van Wyk J 1978 Rep. Prog. Phys. 41 1201Google Scholar
[13] Manson N B, Harrison J P, Sellars M J 2006 Phys. Rev. B 74 104303Google Scholar
[14] Nizovtsev A P, Kilin S Y, Jelezko F, Popa I, Gruber A, Tietz C, Wrachtrup J 2003 Opt. Spectrosc. 94 848Google Scholar
[15] Van der Sar T, Wang Z H, Blok M S, Bernien H, Taminiau T H, Toyli D M, Lidar D A, Awschalom D D, Hanson R, Dobrovitski V V 2012 Nature 484 82Google Scholar
[16] Weil J A, Bolton J R 2007 Electron Paramagnetic Resonance: Elementary Theory and Practical Applications (Hoboken: John Wiley & Sons, Inc.)
[17] Victor A C 1962 J. Chem. Phys. 36 1903Google Scholar
[18] Rong X, Geng J P, Shi F Z, Liu Y, Xu K B, Ma W C, Kong F, Jiang Z, Wu Y, Du J F 2015 Nat. Commun. 6 8748Google Scholar
[19] De Raedt H, Barbara B, Miyashita S, Michielsen K, Bertaina S, Gambarelli S 2012 Phys. Rev. B 85 014408Google Scholar
[20] Rong X, Geng J P, Wang Z X, Zhang Q, Ju C Y, Shi F Z, Duan C K, Du J F 2014 Phys. Rev. Lett. 112 050503Google Scholar
[21] Geng J P, Wu Y, Wang X T, Xu K B, Shi F Z, Xie Y J, Rong X, Du J F 2016 Phys. Rev. Lett. 117 170501Google Scholar
[22] Wu Y, Wang Y, Qin X, Rong X, Du J F 2019 Npj Quantum Inf. 5 1Google Scholar
[23] Wu Y, Liu W Q, Geng J P, Song X R, Ye X Y, Duan C K, Rong X, Du J F 2019 Science 364 878Google Scholar
[24] Viola L, Knill E, Lloyd S 1999 Phys. Rev. Lett. 82 2417Google Scholar
[25] Khodjasteh K, Lidar D A 2005 Phys. Rev. Lett. 95 180501
[26] Uhrig G S 2007 Phys. Rev. Lett. 98 100504Google Scholar
[27] Du J F, Rong X, Zhao N, Wang Y, Yang J H, Liu R B 2009 Nature 461 1265Google Scholar
[28] De Lange G, Wang Z H, Riste D, Dobrovitski V V, Hanson R 2010 Science 330 60Google Scholar
[29] Naydenov B, Dolde F, Hall L T, Shin C, Fedder H, Hollenberg L C, Jelezko F, Wrachtrup J 2011 Phys. Rev. B 83 081201Google Scholar
[30] Liu G Q, Po H C, Du J, Liu R B, Pan X Y 2013 Nat. Commun. 4 2254
[31] Zhang J F, Souza A M, Brandao F D, Suter D 2014 Phys. Rev. Lett. 112 050502Google Scholar
[32] Khodjasteh K, Viola L 2009 Phys. Rev. Lett. 102 080501Google Scholar
[33] Khodjasteh K, Lidar D A, Viola L 2010 Phys. Rev. Lett. 104 090501Google Scholar
[34] West J R, Lidar D A, Fong B H, Gyure M F 2010 Phys. Rev. Lett. 105 230503Google Scholar
[35] Kestner J P, Wang X, Bishop L S, Barnes E, Das Sarma S 2013 Phys. Rev. Lett. 110 140502
[36] Wang X, Bishop L S, Kestner J P, Barnes E, Sun K, Dar Sarma S 2012 Nat. Commun. 3 997
[37] Nielsen M A, Chuang I L 2000 Quantum Computing and Quantum Information (Cambridge: Cambridge University Press)
[38] Wimperis S 1994 J. Magn. Reson. 109 221Google Scholar
[39] Ichikawa T, Bando M, Kondo Y, Nakahara M 2011 Phys. Rev. A 84 062311Google Scholar
[40] Bando M, Ichikawa T, Kondo Y, Nakahara M 2013 J. Phys. Soc. Japan 82 014004
[41] Cummins H K, Llewellyn G, Jones J A 2003 Phys. Rev. A 67 042308Google Scholar
[42] Knill E, Leibfried D, Reichle R, Britton J, Blakestad R B, Jost J D, Langer C, Ozeri R, Seidelin S, Wineland D J 2008 Phys. Rev. A 77 012307Google Scholar
[43] Fowler A G, Mariantoni M, Martinis J M, Cleland A N 2012 Phys. Rev. A 86 032324Google Scholar
[44] Zermelo E 1931 Z. Angew. Math. Mech. 11 114Google Scholar
[45] Wang X T, Allegra M, Jacobs K, Lloyd S, Lupo C, Mohseni M 2015 Phys. Rev. Lett. 114 170501Google Scholar
[46] Barends R, Kelly J, Megrant A, Veitia A, Sank D, Jeffrey E, White T C, Mutus J, Fowler A G, Campbell B, Chen Y, Chen Z, Chiaro B, Dunsworth B, Neill C, O'Malley P, Roushan P, Vainsencher A, Wenner J, Korotkov A N, Cleland A N, Martinis J M 2014 Nature 508 500Google Scholar
[47] Nielsen M A, Chuang I L 1997 Phys. Rev. Lett. 79 321Google Scholar
[48] Kim J, Cheong Y, Lee J S, Lee S 2001 Phys. Rev. A 65 012302Google Scholar
[49] Vidal G, Masanes L, Cirac J I 2002 Phys. Rev. Lett. 88 047905Google Scholar
[50] Shende V V, Markov I L, Bullock S S 2004 Phys. Rev. A 69 062321
[51] Bender C M, Boettcher S 1998 Phys. Rev. Lett. 80 5243Google Scholar
[52] Bender C M, Brody D C, Jones H F 2002 Phys. Rev. Lett. 89 270401Google Scholar
[53] Bender C M 2007 Rep. Prog. Phys. 70 947Google Scholar
[54] Mostafazadeh A 2005 J. Math. Phys. 46 102108Google Scholar
[55] Dorey P, Dunning C, Lishman A, Tateo R 2009 J. Phys. A: Math. Theor. 42 465302
[56] Gong J, Wang Q 2013 J. Phys. A: Math. Theor. 46 485302
[57] Kunst F K, Edvardsson E, Budich J C, Bergholtz E J 2018 Phys. Rev. Lett. 121 026808Google Scholar
[58] Song F, Yao S Y, Wang Z 2019 Phys. Rev. Lett. 123 170401Google Scholar
[59] Gong Z, Ashida Y, Kawabata K, Takasan K, Higashikawa S, Ueda M 2018 Phys. Rev. X 8 031079
[60] Özdemir Ş K, Rotter S, Nori F, Yang L 2019 Nat. Mater. 18 783Google Scholar
[61] Miri M-A, Alù A 2019 Science 363 eaar7709
[62] Bender N, Factor S, Bodyfelt J D, Ramezani H, Christodoulides D N, Ellis F M, Kottos T 2013 Phys. Rev. Lett. 110 234101Google Scholar
[63] Assawaworrarit S, Yu X, Fan S 2017 Nature 546 387Google Scholar
[64] Choi Y, Hahn C, Yoon J W, Song S H 2018 Nat. Commun. 9 2182
[65] Bittner S, Dietz B, Günther U, Harney H L, Miski-Oglu M, Richter A, Schäfer F 2012 Phys. Rev. Lett. 108 024101Google Scholar
[66] Bender C M, Berntson B K, Parker D, Samuel E 2013 Am. J. Phys. 81 173Google Scholar
[67] Zhu X F, Ramezani H, Shi C Z, Zhu J, Zhang X 2014 Phys. Rev. X 4 031042
[68] Popa B I, Cummer S A 2014 Nat. Commun. 5 3398
[69] Fleury R, Sounas D, Alù A 2015 Nat. Commun. 6 5905
[70] Li J M, Harter A K, Liu J, de Melo L, Joglekar Y N, Luo L 2019 Nat. Commun. 10 855
[71] Naghiloo M, Abbasi M, Joglekar Y N, Murch K W 2019 Nat. Phys. 15 1232Google Scholar
[72] Liu W Q, Wu Y, Duan C K, Rong X, Du J F 2021 Phys. Rev. Lett. 126 170506Google Scholar
[73] Lau H K, Clerk A A 2018 Nat. Commun. 9 4320
[74] Chen C, Jin L, Liu R B 2019 New J. Phys. 21 083002Google Scholar
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