Multipartite electronic entanglement purification with charge detection

被引:43
作者
Sheng, Yu-Bo [1 ]
Deng, Fu-Guo [2 ]
Long, Gui-Lu [1 ,3 ,4 ]
机构
[1] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
[2] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China
[3] Tsinghua Univ, Key Lab Atom & Mol NanoSci, Beijing 100084, Peoples R China
[4] Tsinghua Natl Lab Informat Sci & Technol, Beijing 100084, Peoples R China
基金
中国博士后科学基金; 中国国家自然科学基金;
关键词
Quantum physics; Entanglement purification; Multipartite; Electrons; Charge detection; Decoherence; QUANTUM CRYPTOGRAPHY; STATE; TELEPORTATION;
D O I
10.1016/j.physleta.2010.11.018
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We present a multipartite entanglement purification scheme in a Greenberger-Horne-Zeilinger state for electrons based on their spins and their charges. This scheme works for purification with two steps, i.e., bit-flip error correction and phase-flip error correction. By repeating these two steps, the parties in quantum communication can get some high-fidelity multipartite entangled electronic systems. (C) 2010 Published by Elsevier B.V.
引用
收藏
页码:396 / 400
页数:5
相关论文
共 45 条
[1]   Charge detection enables free-electron quantum computation [J].
Beenakker, CWJ ;
DiVincenzo, DP ;
Emary, C ;
Kindermann, M .
PHYSICAL REVIEW LETTERS, 2004, 93 (02) :020501-1
[2]   COMMUNICATION VIA ONE-PARTICLE AND 2-PARTICLE OPERATORS ON EINSTEIN-PODOLSKY-ROSEN STATES [J].
BENNETT, CH ;
WIESNER, SJ .
PHYSICAL REVIEW LETTERS, 1992, 69 (20) :2881-2884
[3]   TELEPORTING AN UNKNOWN QUANTUM STATE VIA DUAL CLASSICAL AND EINSTEIN-PODOLSKY-ROSEN CHANNELS [J].
BENNETT, CH ;
BRASSARD, G ;
CREPEAU, C ;
JOZSA, R ;
PERES, A ;
WOOTTERS, WK .
PHYSICAL REVIEW LETTERS, 1993, 70 (13) :1895-1899
[4]   Purification of noisy entanglement and faithful teleportation via noisy channels [J].
Bennett, CH ;
Brassard, G ;
Popescu, S ;
Schumacher, B ;
Smolin, JA ;
Wootters, WK .
PHYSICAL REVIEW LETTERS, 1996, 76 (05) :722-725
[5]   QUANTUM CRYPTOGRAPHY WITHOUT BELL THEOREM [J].
BENNETT, CH ;
BRASSARD, G ;
MERMIN, ND .
PHYSICAL REVIEW LETTERS, 1992, 68 (05) :557-559
[6]   Fault-tolerant quantum repeater with atomic ensembles and linear optics [J].
Chen, Zeng-Bing ;
Zhao, Bo ;
Chen, Yu-Ao ;
Schmiedmayer, Joerg ;
Pan, Jian-Wei .
PHYSICAL REVIEW A, 2007, 76 (02)
[7]   Entanglement purification for high-dimensional multipartite systems [J].
Cheong, Yong Wook ;
Lee, Seung-Woo ;
Lee, Jinhyoung ;
Lee, Hai-Woong .
PHYSICAL REVIEW A, 2007, 76 (04)
[8]  
Chuang I. N., 2000, Quantum Computation and Quantum Information
[9]   How to share a quantum secret [J].
Cleve, R ;
Gottesman, D ;
Lo, HK .
PHYSICAL REVIEW LETTERS, 1999, 83 (03) :648-651
[10]   Quantum state sharing of an arbitrary two-qubit state with two-photon entanglements and Bell-state measurements [J].
Deng, F. -G. ;
Li, X. -H. ;
Li, C. -Y. ;
Zhou, P. ;
Zhou, H. -Y. .
EUROPEAN PHYSICAL JOURNAL D, 2006, 39 (03) :459-464