Unsharp spin observables, non-locality and Fry, Walther and Li experiment

Pramana

Sisir Roy¹ 

[1] Indian Statistical Institute, 203, B.T. Road, Calcutta 700 035, India$$

关键词: Unsharp observables;    non-locality;    detection loophole.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

Recently it has been demonstrated that Bell inequalities for spin 1/2 particles must be modified if unsharp spin observables are considered, and furthermore, the modified Bell inequalities may not be violated by quantum mechanics if the observables are sufficiently unsharp. In case of massive particles there may be more imperfection than seems to appear in the photon EPR experiments. So the experiment proposed by Fry, Walther and Li can place experimental limits on the unsharpness of spin variables. It sheds new light on the much debated issues like non-local correlations in quantum mechanics.

【 授权许可】

Unknown