Experimental test of the irreducible four-qubit Greenberger-Horne-Zeilinger paradox
Experimental test of the irreducible four-qubit Greenberger-Horne-Zeilinger paradox
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不可约四量子位 Greenberger-Horne-Zeilinger 悖论的实验测试
DOI:
10.1103/physreva.95.030103
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发表时间:
2016-11
影响因子:
2.9
通讯作者:
Jian-Wei Pan
中科院分区:
文献类型:
--
作者:
Zu-En Su;Wei-Dong Tang;Dian Wu;Xin-Dong Cai;Tao Yang;Li Li;Nai-Le Liu;Chao-Yang Lu;Marek ˙ Zukowski;Jian-Wei Pan
Bell's theorem shows a profound contradiction between local realism and quantum mechanics on the level of statistical predictions. It does not involve directly Einstein-Podolsky-Rosen (EPR) correlations. The paradox of Greenberger-Horne-Zeilinger (GHZ) disproves directly the concept of EPR elements of reality, based on the EPR correlations, in an all-versus-nothing way. A three-qubit experimental demonstration of the GHZ paradox was achieved nearly twenty years ago, and followed by demonstrations for more qubits. Still, the GHZ contradictions underlying the tests can be reduced to three-qubit one. We show an irreducible four-qubit GHZ paradox, and report its experimental demonstration. The reducibility loophole is closed. The bound of a three-setting per party Bell-GHZ inequality is violated by $7\sigma$. The fidelity of the GHZ state was around $81\%$, and an entanglement witness reveals a violation of the separability threshold by $19\sigma$.
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影响因子:
8.6
作者:
Shalm LK;Meyer-Scott E;Christensen BG;Bierhorst P;Wayne MA;Stevens MJ;Gerrits T;Glancy S;Hamel DR;Allman MS;Coakley KJ;Dyer SD;Hodge C;Lita AE;Verma VB;Lambrocco C;Tortorici E;Migdall AL;Zhang Y;Kumor DR;Farr WH;Marsili F;Shaw MD;Stern JA;Abellán C;Amaya W;Pruneri V;Jennewein T;Mitchell MW;Kwiat PG;Bienfang JC;Mirin RP;Knill E;Nam SW
通讯作者:
Nam SW
影响因子:
8.6
作者:
P. Walther;M. Aspelmeyer;K. Resch;A. Zeilinger
通讯作者:
P. Walther;M. Aspelmeyer;K. Resch;A. Zeilinger
DOI:
10.1117/12.483026
发表时间:
2002-09
期刊:
--
影响因子:
--
作者:
G. Guo;Guangcan Guo
通讯作者:
G. Guo;Guangcan Guo
影响因子:
2.9
作者:
Jinhyoung Lee;Seung-Woo Lee;Mihyang Kim
通讯作者:
Jinhyoung Lee;Seung-Woo Lee;Mihyang Kim
影响因子:
8.6
作者:
Giustina, Marissa;Versteegh, Marijn A. M.;Zeilinger, Anton
通讯作者:
Zeilinger, Anton