标题： 哈迪的非定域性论证 显示英文标题

标题： The Hardy's nonlocality argument

摘要： 量子理论的某些预测与局域实在论的概念不兼容。 这就是贝尔 1964 年著名定理的内容。 贝尔通过一个著名的不等式证明了这一点，该不等式被称为贝尔不等式。 贝尔定理的非局域性无不等式（NLWI）证明是指不使用贝尔不等式的替代证明。 我们回顾其中一种证明，即哈迪证明，由于其简单性和普适性，被认为是贝尔定理的最佳版本。 显示英文摘要

摘要： Certain predictions of quantum theory are not compatible with the notion of local-realism. This was the content of Bell's famous theorem of the year 1964. Bell proved this with the help of an inequality, famously known as Bell's inequality. The alternative proofs of Bell's theorem without using Bell's inequality are known as `nonlocality without inequality (NLWI)' proofs. We, review one such proof, namely the Hardy's proof which due to its simplicity and generality has been considered the best version of Bell's theorem.