Chin. Phys. Lett.  2010, Vol. 27 Issue (9): 090303    DOI: 10.1088/0256-307X/27/9/090303
GENERAL |
Testing Evolution Equation for Entanglement of Two-Qubit Systems in Noisy Channels on Ensemble Quantum Computers

ZHANG Han1,2,3, LUO Jun1,2, REN Ting-Ting1,2,3, SUN Xian-Ping1,2

1State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 2Center for Cold Atom Physics, Chinese Academy of Sciences, Wuhan 430071 3Graduate School of the Chinese Academy of Sciences, Beijing 100049
Cite this article:   
ZHANG Han, LUO Jun, REN Ting-Ting et al  2010 Chin. Phys. Lett. 27 090303
Download: PDF(493KB)  
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks
Abstract

We report the experimental demonstration of decoherence dynamics of entanglement for the four Bell states in two-qubit nuclear-spin systems on ensemble quantum computers. Using artificial error operators to simulate noisy channels, we experimentally investigate the effect of noises on the four Bell states, and furthermore observe the time evolution of entanglement for the four Bell states in different noisy channels by calculating concurrences. Our experimental results show that the concurrences of the different Bell states under the same artificial error operations have the same values within the experimental error, and are independent of the different Bell states. These experimental results verify the theoretical evolution equation developed by Konrad et al.[Nature Phys. 4(2008)99] for two-qubit entanglement.

Keywords: 03.67.-a      03.67.Bg      03.67.Yz     
Received: 01 June 2010      Published: 25 August 2010
PACS:  03.67.-a (Quantum information)  
  03.67.Bg (Entanglement production and manipulation)  
  03.67.Yz  
TRENDMD:   
URL:  
https://cpl.iphy.ac.cn/10.1088/0256-307X/27/9/090303       OR      https://cpl.iphy.ac.cn/Y2010/V27/I9/090303
Service
E-mail this article
E-mail Alert
RSS
Articles by authors
ZHANG Han
LUO Jun
REN Ting-Ting
SUN Xian-Ping
[1] Nielsen M A and Chuang I L 2000 Quantum Computation and Quantum Information (Cambridge: Cambridge University)
[2] Bennett C H and DiVincenzo D P 2000 Nature 404 247
[3] Ladd T D, Jelezko F, Laflamme R, Nakamura Y, Monroe C and O'Brien J L 2010 Nature 464 45
[4] Konrad T, Melo F D, Tiersch M, Kasztelan C, Aragao A and Buchleitner A 2008 Nature Phys. 4 99
[5] Yu T and Eberly J H 2009 Science 323 598
[6] Yu T and Eberly J H 2004 Phys. Rev. Lett. 93 140404
[7] Yu T and Eberly J H 2006 Phys. Rev. Lett. 97 140403
[8] Xu J S, Li C F, Xu X Y, Shi C H, Zou X B and Guo G C 2009 Phys. Rev. Lett. 103 240502
[9] Farias O J, Latune C L, Walborn S P, Davidovich L and Ribeiro P H S 2009 Science 324 1414
[10] Xu J S, Xu X Y, Li C F, Zhang C J, Zou X B and Guo G C 2010 Nature Commun. 1 7
[11] Jones J A 2001 Prog. NMR. Spectrosc. 38 325
[12] Vandersypen L M K and Chuang I L 2004 Rev. Mod. Phys. 76 1037
[13] Chuang I L, Gershenfeld N, Kubinec M G and Leung D W 1998 Proc. R. Soc. Lond. A 454 447
[14] Gershenfeld N A and Chuang I L 1997 Science 275 350
[15] Cory D G, Fahmy A F and Havel T F 1997 Proc. Natl. Acad. Sci. U.S.A. 94 1634
[16] Wootters W K 1998 Phys. Rev. Lett. 80 2245
[17] Pravia M et al 1999 Concepts Magn. Reson. 11 225
[18] Xiao L and Jones J A 2006 Phys. Lett. A 359 424
[19] Ren T T, Luo J, Sun X P and Zhan M S 2009 Chin. Phys. B 18 4711
Related articles from Frontiers Journals
[1] 天琦 窦,吉鹏 王,振华 李,文秀 屈,舜禹 杨,钟齐 孙,芬 周,雁鑫 韩,雨晴 黄,海强 马. A Fully Symmetrical Quantum Key Distribution System Capable of Preparing and Measuring Quantum States*

Supported by the Fundamental Research Funds for the Central Universities (Grant No. 2019XD-A02), and the State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications (Grant No. IPO2019ZT06).

[J]. Chin. Phys. Lett., 2020, 37(11): 090303
[2] LIU Kui, CUI Shu-Zhen, YANG Rong-Guo, ZHANG Jun-Xiang, GAO Jiang-Rui. Experimental Generation of Multimode Squeezing in an Optical Parametric Amplifier[J]. Chin. Phys. Lett., 2012, 29(6): 090303
[3] REN Jie, WU Yin-Zhong, ZHU Shi-Qun. Quantum Discord and Entanglement in Heisenberg XXZ Spin Chain after Quenches[J]. Chin. Phys. Lett., 2012, 29(6): 090303
[4] XIANG Shao-Hua**,DENG Xiao-Peng,SONG Ke-Hui. Protection of Two-Qubit Entanglement by the Quantum Erasing Effect[J]. Chin. Phys. Lett., 2012, 29(5): 090303
[5] SHAN Chuan-Jia,**,CAO Shuai,XUE Zheng-Yuan,ZHU Shi-Liang. Anomalous Temperature Effects of the Entanglement of Two Coupled Qubits in Independent Environments[J]. Chin. Phys. Lett., 2012, 29(4): 090303
[6] QIAN Yi,XU Jing-Bo**. Enhancing Quantum Discord in Cavity QED by Applying Classical Driving Field[J]. Chin. Phys. Lett., 2012, 29(4): 090303
[7] Arpita Maitra, Santanu Sarkar. On Universality of Quantum Fourier Transform[J]. Chin. Phys. Lett., 2012, 29(3): 090303
[8] QIN Meng, ZHAI Xiao-Yue, CHEN Xuan, LI Yan-Biao, WANG Xiao, BAI Zhong. Effect of Spin-Orbit Interaction and Input State on Quantum Discord and Teleportation of Two-Qubit Heisenberg Systems[J]. Chin. Phys. Lett., 2012, 29(3): 090303
[9] GU Shi-Jian**, WANG Li-Gang, WANG Zhi-Guo, LIN Hai-Qing. Repeater-Assisted Zeno Effect in Classical Stochastic Processes[J]. Chin. Phys. Lett., 2012, 29(1): 090303
[10] YU You-Bin**, WANG Huai-Jun, FENG Jin-Xia . Generation of Enhanced Three-Mode Continuously Variable Entanglement[J]. Chin. Phys. Lett., 2011, 28(9): 090303
[11] JI Wei-Bang, WAN Jin-Yin, CHENG Hua-Dong, LIU Liang** . An Optimum Method for a Grooved 2D Planar Ion Trap Design[J]. Chin. Phys. Lett., 2011, 28(7): 090303
[12] Salman Khan**, M. Khalid Khan . Quantum Stackelberg Duopoly in a Noninertial Frame[J]. Chin. Phys. Lett., 2011, 28(7): 090303
[13] QIAN Yi, XU Jing-Bo** . Quantum Discord Dynamics of Two Atoms Interacting with Two Quantized Field Modes through a Raman Interaction with Phase Decoherence[J]. Chin. Phys. Lett., 2011, 28(7): 090303
[14] Abbass Sabour, Mojtaba Jafarpour** . A Probability Measure for Entanglement of Pure Two-Qubit Systems and a Useful Interpretation for Concurrence[J]. Chin. Phys. Lett., 2011, 28(7): 090303
[15] LIAO Qing-Hong, FANG Guang-Yu, WANG Ji-Cheng, AHMAD Muhammad Ashfaq, LIU Shu-Tian** . Control of the Entanglement between Two Josephson Charge Qubits[J]. Chin. Phys. Lett., 2011, 28(6): 090303
Viewed
Full text


Abstract