How quantum correlations enhance prediction of complementary measurements

被引：0

作者：

Filip, R ^{[1
]}

Gavenda, M ^{[1
]}

Soubusta, J ^{[1
]}

Cernoch, A ^{[1
]}

Dusek, M ^{[1
]}

机构：

[1] Palacky Univ, Dept Opt, Olomouc 77200, Czech Republic

来源：

QUANTUM COMMUNICATION, MEASUREMENT AND COMPUTING | 2004年 / 734卷

关键词：

D O I：

暂无

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

If there are correlations between two qubits then the results of the measurement on one of them can help to predict measurement results on the other one. It is an interesting question what can be predicted about the results of two complementary projective measurements on the first qubit. To quantify these predictions the complementary knowledge excesses are used. A non-trivial constraint restricting them is derived. For any mixed state and for arbitrary measurements the knowledge excesses are bounded by a factor depending only on the maximal violation of Bell's inequalities. This result is experimentally verified on two-photon Werner states prepared by means of spontaneous parametric down-conversion.

引用

页码：115 / 118

页数：4

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