利用热平衡态超导电荷量子比特实现量子隐形传态

乔盼盼; 艾合买提·阿不力孜; 蔡江涛; 路俊哲; 麦麦提依明·吐孙; 日比古·买买提明

doi:10.7498/aps.61.240303

摘要

本文利用处于热平衡态的两个相同超导电荷量子比特纠缠态作为量子隐形传态的信道, 给出标准量子隐形传态协议下传递单量子比特态和两量子比特态的纠缠以及非标准协议下传递单量子比特态时平均保真度的解析表达式, 研究其随温度、约瑟夫森能等系统参数的变化情况. 计算结果表明, 在标准量子隐形传态协议下传递两量子比特之间的纠缠以及非标准量子隐形传态协议下传递单量子比特态时可以实现接近理想的量子隐形传态.

关键词:

Is this paper we mainly investigate the effects of the temperature and Josephson energy on teleportation of one qubit state in both the standard and the non-standard protocols as well as the partial teleportation of an entangled state under the standard protocol via two identical superconducting charge qubits in thermal equilibrium as the teleportation channel, and give the analytical expression of the average fidelity. Our results show that the teleportation of one qubit state in non-standard protocol and the partial teleportation of entanglement in standard protocol can be almost perfect, indicating that quantum teleportation, with using superconducting charge qubits in thermal equilibrium as a quantum channel, is feasible in theory.

Keywords:

作者及机构信息

1.
新疆师范大学物理与电子工程学院, 乌鲁木齐 830054;

2.
中国科学院半导体研究所, 半导体超晶格国家重点实验室, 北京 100083

基金项目: 教育部科学技术研究重点项目(批准号: 212193)、新疆师范大学研究生科技创新基金(批准号: 20121213)、新疆维吾尔自治区理论物理重点学科研究生科技创新项目(批准号: LLWLY201103)和新疆维吾尔自治区自然科学基金(批准号: 2012211A052)资助的课题.

Authors and contacts

1.
School of Physics and Electronic Engineering, Xinjiang Normal University, Urumchi 830054, China;

2.
State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China

Funds: Project supported by the Foundation for Key Program of Ministry of Education, China (Grant No. 212193), the Science and Technology Innovation Foundation for Graduate Students of XJNU (Grant No. 20121213), the Innovative Foundation for Graduate Students granted by the Key Subjects of Theoretical Physics of Xinjiang, China (Grant No. LLWLL201103), and the Natural Science Fund of XUAR (Grant No. 2012211A052).

参考文献

[1]	Bennett C H, Brassard G, Crépeau C, Jozsa R, Peres A, Wootters W K 1993 Phys. Rev. Lett. 70 1895
[2]	Bouwmeester D, Pan J W, Mattle K, Eibl M, Weinfurter H, Zeilinger A 1997 Nature 390 575
[3]	Pan J W, Daniell M, Gasparoni S, Weihs G, Zeilinger A 2001 Phys. Rev. Lett. 86 4435
[4]	Ursin R, Jennewein T, Aspelmeyer M, Kaltenbaek R, Lindenthal M, Walther P, Zeilinger A 2004 Nature 430 849
[5]	Riebe M, Häffner H, Roos C F, Hänsel W, Benhelm J, Lancaster G P T, Körber T W, Becher C, Schmidt K F, James D F V, Blat R 2004 Nature 429 734
[6]	Barrett M D, Chiaverini J, Schaetz T, Britton J, Itano W M, Jost J D, Knill E, Langer C, Leibfried D, Ozeri R, Wineland D J 2004 Nature 429 737
[7]	Makhlin Y, Schon G, Shnirman A 2001 Rev. Mod. Phys. 73 357
[8]	Yu Y 2005 Acta Phys. Sin. 34 578 (in Chinese) [于扬 2005 34 578]
[9]	You J Q, Nori F 2005 Phys. Today 58 42
[10]	Clacke J, Wilhelm F K 2008 Nature 453 1031
[11]	You J Q 2010 Acta Phys. Sin. 39 810 (in Chinese) [游建强 2010 39 810]
[12]	Liao Q H, Fang G Y, Wang J C, Ahmad M A, Liu S T 2011 Chin. Phys. Lett. 28 060307
[13]	Ge G Q, Qin C, Yin M, Huang Y H 2011 Chin. Phys. B 20 080304
[14]	Zhang F Y, Shi Y 2011 Commum. Theor. Phys. 56 385
[15]	Tian L J, Qin L G, Zhang H B 2011 Chin. Phys. Lett. 28 050308
[16]	Paternostro M, Falci G, Kim M, Palma G M 2004 Phys. Rev. B 69 214502
[17]	Li J G, Zou J, Xu B M, Shao B 2011 Chin. Phys. Lett. 28 090301
[18]	Strauch F W, Williams C J 2008 Phys. Rev. B 78 094516
[19]	Metwally N, El-Amin A A 2009 Phys. E 44 718
[20]	Baur M, Fedorov A, Steffen L, Filipp S, Silva M P, Wallraff A 2012 Phys. Rev. Lett. 108 040502
[21]	Strauch F W, Williams C J 2008 Phys. Rev. B 78 094516
[22]	Pashkin Y A, Yamamoto T, Astafiev O, Nakamara Y, Averin D V, Tsai J S 2003 Nature 421 823
[23]	Storcz M J, Wilhelm F K 2003 Phys. Rev. A 67 042319
[24]	Bowen G, Bose S 2001 Phys. Rev. Lett. 87 267901
[25]	Pan C J, Fang J S, Peng X F, Liao X P, fang M F 2011 Acta Phys. Sin. 60 090303 (in Chinese) [潘长宁, 方见树, 彭小芳, 廖湘萍, 方卯发 2011 60 090303]
[26]	Zhang G F 2007 Phys. Rev. A 75 034304
[27]	Pashkin Y A, Astafiev O, Yamamoto T, Nakamura Y, Tsai J S 2009 Quantum. Inf. Process 8 55
[28]	Cai J T, Abliz A, Zhang G F, Bai Y K 2010 Opts. Commun. 283 4414

施引文献

[1]	Bennett C H, Brassard G, Crépeau C, Jozsa R, Peres A, Wootters W K 1993 Phys. Rev. Lett. 70 1895
[2]	Bouwmeester D, Pan J W, Mattle K, Eibl M, Weinfurter H, Zeilinger A 1997 Nature 390 575
[3]	Pan J W, Daniell M, Gasparoni S, Weihs G, Zeilinger A 2001 Phys. Rev. Lett. 86 4435
[4]	Ursin R, Jennewein T, Aspelmeyer M, Kaltenbaek R, Lindenthal M, Walther P, Zeilinger A 2004 Nature 430 849
[5]	Riebe M, Häffner H, Roos C F, Hänsel W, Benhelm J, Lancaster G P T, Körber T W, Becher C, Schmidt K F, James D F V, Blat R 2004 Nature 429 734
[6]	Barrett M D, Chiaverini J, Schaetz T, Britton J, Itano W M, Jost J D, Knill E, Langer C, Leibfried D, Ozeri R, Wineland D J 2004 Nature 429 737
[7]	Makhlin Y, Schon G, Shnirman A 2001 Rev. Mod. Phys. 73 357
[8]	Yu Y 2005 Acta Phys. Sin. 34 578 (in Chinese) [于扬 2005 34 578]
[9]	You J Q, Nori F 2005 Phys. Today 58 42
[10]	Clacke J, Wilhelm F K 2008 Nature 453 1031
[11]	You J Q 2010 Acta Phys. Sin. 39 810 (in Chinese) [游建强 2010 39 810]
[12]	Liao Q H, Fang G Y, Wang J C, Ahmad M A, Liu S T 2011 Chin. Phys. Lett. 28 060307
[13]	Ge G Q, Qin C, Yin M, Huang Y H 2011 Chin. Phys. B 20 080304
[14]	Zhang F Y, Shi Y 2011 Commum. Theor. Phys. 56 385
[15]	Tian L J, Qin L G, Zhang H B 2011 Chin. Phys. Lett. 28 050308
[16]	Paternostro M, Falci G, Kim M, Palma G M 2004 Phys. Rev. B 69 214502
[17]	Li J G, Zou J, Xu B M, Shao B 2011 Chin. Phys. Lett. 28 090301
[18]	Strauch F W, Williams C J 2008 Phys. Rev. B 78 094516
[19]	Metwally N, El-Amin A A 2009 Phys. E 44 718
[20]	Baur M, Fedorov A, Steffen L, Filipp S, Silva M P, Wallraff A 2012 Phys. Rev. Lett. 108 040502
[21]	Strauch F W, Williams C J 2008 Phys. Rev. B 78 094516
[22]	Pashkin Y A, Yamamoto T, Astafiev O, Nakamara Y, Averin D V, Tsai J S 2003 Nature 421 823
[23]	Storcz M J, Wilhelm F K 2003 Phys. Rev. A 67 042319
[24]	Bowen G, Bose S 2001 Phys. Rev. Lett. 87 267901
[25]	Pan C J, Fang J S, Peng X F, Liao X P, fang M F 2011 Acta Phys. Sin. 60 090303 (in Chinese) [潘长宁, 方见树, 彭小芳, 廖湘萍, 方卯发 2011 60 090303]
[26]	Zhang G F 2007 Phys. Rev. A 75 034304
[27]	Pashkin Y A, Astafiev O, Yamamoto T, Nakamura Y, Tsai J S 2009 Quantum. Inf. Process 8 55
[28]	Cai J T, Abliz A, Zhang G F, Bai Y K 2010 Opts. Commun. 283 4414

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