Experimental methods for detecting entanglement -: art. no. 033601

被引：57
作者：
Altepeter, JB
Jeffrey, ER
Kwiat, PG
Tanzilli, S
Gisin, N
Acín, A
机构：
[1] Univ Illinois, Dept Phys, Urbana, IL 61801 USA
[2] Univ Geneva, Appl Phys Grp, CH-1211 Geneva, Switzerland
[3] Inst Ciencies Foton, ICFO, Barcelona 08034, Spain
来源：
PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 03期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1103/PhysRevLett.95.033601
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Here we present experimental realizations of two new entanglement detection methods: a three-measurement Bell inequality inequivalent to the Clauser-Horne-Shimony-Holt inequality and a nonlinear Bell-type inequality based on the negativity measure. In addition, we provide an experimental and theoretical comparison between these new methods and several techniques already in use: the traditional Clauser-Horne-Shimony-Holt inequality, the entanglement witness, and complete state tomography.
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页数：4
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