Quantum logic operations on two distant atoms trapped in two optical-fibre-connected cavities

doi:10.1088/1674-1056/20/12/120310

中国物理B ›› 2011, Vol. 20 ›› Issue (12): 120310-120310.doi: 10.1088/1674-1056/20/12/120310

Quantum logic operations on two distant atoms trapped in two optical-fibre-connected cavities

Yeon Kyu-Hwang¹, Yu Seong-Cho¹, 张寿², 张英俏³

(1)BK21 Physics Program and Department of Physics, College of Natural Sciences, Chungbuk National University, Cheongju, Chungbuk, 361-763, Republic of Korea; (2)Department of Physics, College of Science, Yanbian University, Yanji 133002, China; (3)Department of Physics, College of Science, Yanbian University, Yanji 133002, China;BK21 Physics Program and Department of Physics, College of Natural Sciences, Chungbuk National University, Cheongju, Chungbuk, 361-763, Republic of Korea

收稿日期:2011-04-18 修回日期:2011-05-17 出版日期:2011-12-15 发布日期:2011-12-15

Quantum logic operations on two distant atoms trapped in two optical-fibre-connected cavities

Zhang Ying-Qiao(张英俏)^a)b)^†, Zhang Shou(张寿)^a), Yeon Kyu-Hwang^b), and Yu Seong-Cho^b)

^a Department of Physics, College of Science, Yanbian University, Yanji 133002, China; ^b BK21 Physics Program and Department of Physics, College of Natural Sciences, Chungbuk National University, Cheongju, Chungbuk, 361-763, Republic of Korea

Received:2011-04-18 Revised:2011-05-17 Online:2011-12-15 Published:2011-12-15

摘要/Abstract

摘要： Based on the coupling of two distant three-level atoms in two separate optical cavities connected with two optical fibres, schemes on the generation of several two-qubit logic gates are discussed under the conditions of Δ = δ - 2ν cos πk/2 >> g/2 and ν ~ g. Discussion and analysis of the fidelity, gate time and experimental setups show that our schemes are feasible with current optical cavity, atomic trap and optical fibre techniques. Moreover, the atom-cavity- fibre coupling can be used to generate an N-qubit nonlocal entanglement and transfer quantum information among N distant atoms by arranging N atom-cavity assemblages in a line and connecting each two adjacent cavities with two optical fibres.

关键词: quantum logic gate, cavity QED, optical fibre

Abstract: Based on the coupling of two distant three-level atoms in two separate optical cavities connected with two optical fibres, schemes on the generation of several two-qubit logic gates are discussed under the conditions of $\varDelta=\delta-2\nu\cos\pi k/2\gg g/2$ and $\nu\sim g$. Discussion and analysis of the fidelity, gate time and experimental setups show that our schemes are feasible with current optical cavity, atomic trap and optical fibre techniques. Moreover, the atom--cavity--fibre coupling can be used to generate an $N$-qubit nonlocal entanglement and transfer quantum information among $N$ distant atoms by arranging $N$ atom--cavity assemblages in a line and connecting each two adjacent cavities with two optical fibres.

Key words: quantum logic gate, cavity QED, optical fibre

中图分类号: (Quantum computation architectures and implementations)

03.67.Lx

42.50.Pq (Cavity quantum electrodynamics; micromasers)

张英俏, 张寿, Yeon Kyu-Hwang, Yu Seong-Cho. Quantum logic operations on two distant atoms trapped in two optical-fibre-connected cavities[J]. 中国物理B, 2011, 20(12): 120310-120310.

Zhang Ying-Qiao(张英俏), Zhang Shou(张寿), Yeon Kyu-Hwang, and Yu Seong-Cho . Quantum logic operations on two distant atoms trapped in two optical-fibre-connected cavities[J]. Chin. Phys. B, 2011, 20(12): 120310-120310.

参考文献 25

[1]	Palma G M, Suominen K A and Ekert A K 1996 Proc. R. Soc. Lond. A 452 567
[2]	DiVincenzo D P and Loss D 1998 Superlattice Microstruc. 23 419
[3]	Cirac J I, Ekert A K, Huelga S F and Macchiavello C 1999 Phys. Rev. A 59 4249
[4]	Paternostro M, Kim M S and Palma G M 2003 J. Mod. Opt. 50 2075
[5]	Xia Y, Song J and Song H S 2008 Chin. Phys. Lett. 25 3150
[6]	Song J, Xia Y and Song H S 2009 Europhys. Lett. 87 50005
[7]	Lin L H 2009 Chin. Phys. B 18 1867
[8]	Xia Y, Song J, Lu P M and Song H S 2011 J. Phys. B: At. Mol. Opt. Phys. 44 025503
[9]	Serafini A, Mancini S and Bose S 2006 Phys. Rev. Lett. 96 010503
[10]	Yin Z Q and Li F L 2007 Phys. Rev. A 75 012324
[11]	Yang Z B, Wu H Z, Su W J and Zheng S B 2009 Phys. Rev. A 80 012305
[12]	Ye S Y and Zheng S B 2008 Opt. Commun. 281 1306
[13]	Zheng S B 2009 Appl. Phys. Lett. 94 154101
[14]	Li Y L, Fang M F and Zeng K 2010 Chin. Phys. B 19 010307
[15]	Zheng S B 2010 Chin. Phys. B 19 064204
[16]	Zheng S B, Yang C P and Nori F 2010 Phys. Rev. A 82 042327
[17]	Spillane S M, Kippenberg T J, Vahala K J, Goh K W, Wilcut E and Kimble H J 2005 Phys. Rev. A 71 013817
[18]	Boca A, Miller R, Birnbaum K M, Boozer A D, McKeever J and Kimble H J 2004 Phys. Rev. Lett. 93 233603
[19]	Braginsky V B, Gorodetsky M L and Ilchenko V S 1989 Phys. Lett. A 137 393
[20]	Gorodetsky M L, Savchenkov A A and Ilchenko V S 1996 Opt. Lett. 21 453
[21]	Vernooy D W, Ilchenko V S, Mabuchi H, Streed E W and Kimble H J 1998 Opt. Lett. 23 247
[22]	Armani D K, Kippenberg T J, Spillane S M and Vahala K J 2003 Nature 421 925
[23]	Spillane S M, Kippenberg T J, Painter O J and Vahala K J 2003 Phys. Rev. Lett. 91 043902
[24]	Knight J C, Cheung G, Jacques F and Birks T A 1997 Opt. Lett. 22 1129
[25]	Cai M, Painter O and Vahala K J 2000 Phys. Rev. Lett. 85 74

Quantum logic operations on two distant atoms trapped in two optical-fibre-connected cavities

Quantum logic operations on two distant atoms trapped in two optical-fibre-connected cavities

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献 25

相关文章 15

Metrics

本文评价

推荐阅读 0

[1]	李浩珍, 曾然, 周雪芳, 毕美华, 许静平, 羊亚平. Phase-modulated quadrature squeezing in two coupled cavities containing a two-level system[J]. 中国物理B, 2020, 29(5): 50308-050308.
[2]	杨鹏飞, 贺海, 王志辉, 韩星, 李刚, 张鹏飞, 张天才. Cavity enhanced measurement of trap frequency in an optical dipole trap[J]. 中国物理B, 2019, 28(4): 43701-043701.
[3]	苏石磊. Rydberg quantum controlled-phase gate with one control and multiple target qubits[J]. 中国物理B, 2018, 27(11): 110304-110304.
[4]	R Pakniat, M K Tavassoly, M H Zandi. A novel scheme of hybrid entanglement swapping and teleportation using cavity QED in the small and large detuning regimes and quasi-Bell state measurement method[J]. 中国物理B, 2016, 25(10): 100303-100303.
[5]	郑雅梅, 胡长生, 杨贞标, 吴怀志. Photon bunching and anti-bunching with two dipole-coupled atoms in an optical cavity[J]. 中国物理B, 2016, 25(10): 104202-104202.
[6]	张春玲, 陈美锋. Quantum state transfer between atomic ensembles trapped in separate cavities via adiabatic passage[J]. 中国物理B, 2015, 24(7): 70310-070310.
[7]	文晶姬, Yeon Kyu-Hwang, 王洪福, 张寿. Scheme for generating a cluster-type entangled squeezed vacuum state via cavity QED[J]. 中国物理B, 2014, 23(4): 40301-040301.
[8]	叶天语, 蒋丽珍. Large payload quantum steganography based on cavity quantum electrodynamics[J]. Chin. Phys. B, 2013, 22(4): 40305-040305.
[9]	张刚, 周建, 薛正远. Efficient generation of two-dimensional cluster states in cavity QED[J]. Chin. Phys. B, 2013, 22(4): 40307-040307.
[10]	邹琳, 冯野, 杨毅彪, 王安帮, 杨玲珍, 张建忠. High-speed chaotic communication using an optical fibre ring as a key[J]. 中国物理B, 2011, 20(9): 94209-094209.
[11]	夏长明, 周桂耀, 韩颖, 侯蓝田. Photoluminescence of an Yb³⁺/Al³⁺-codoped microstructured optical fibre[J]. 中国物理B, 2011, 20(8): 87802-087802.
[12]	杨榕灿, 李刚, 李杰, 张天才. Atomic N00N state generation in distant cavities by virtual excitations[J]. 中国物理B, 2011, 20(6): 60302-060302.
[13]	吴熙, 陈志华, 张勇, 陈悦华, 叶明勇, 林秀敏. Implementation of quantum controlled phase gate and preparation of multiparticle entanglement in cavity QED[J]. 中国物理B, 2011, 20(6): 60306-060306.
[14]	李艳玲, 方卯发. Generation of W_n state with three atoms trapped in two remote cavities coupled by an optical fibre[J]. 中国物理B, 2011, 20(5): 50314-050314.
[15]	李宏亮, 张巍, 黄翊东, 彭江得. Acoustic longitudinal mode coupling in w-shaped Al/Ge Co-doped fibre[J]. 中国物理B, 2011, 20(10): 104211-104211.