Experimental noise-resistant Bell-inequality violations for polarization-entangled photons

被引:18
作者
Bovino, Fabio A. [1 ]
Castagnoli, Giuseppe [1 ]
Cabello, Adan [2 ]
Lamas-Linares, Antia [3 ]
机构
[1] Elsag Spa, I-16154 Genoa, Italy
[2] Univ Seville, Dept Fis Aplicada 2, Seville 41012, Spain
[3] Natl Univ Singapore, Dept Phys, Quantum Informat Technol Lab, Singapore 117542, Singapore
来源
PHYSICAL REVIEW A | 2006年 / 73卷 / 06期
关键词
D O I
10.1103/PhysRevA.73.062110
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We experimentally demonstrate that violations of Bell's inequalities for two-photon polarization-entangled states with colored noise are extremely robust, whereas this is not the case for states with white noise. Controlling the amount of noise by using the timing compensation scheme introduced by Kim [Phys. Rev. A 67, 010301(R) (2003)], we have observed violations even for states with very high noise, in excellent agrement with the predictions of Cabello et al.
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页数:4
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