Irvine William T M, Hodelin Juan F, Simon Christoph, Bouwmeester Dirk
Department of Physics, University of California, Santa Barbara, CA 93106, USA.
Phys Rev Lett. 2005 Jul 15;95(3):030401. doi: 10.1103/PhysRevLett.95.030401. Epub 2005 Jul 11.
We present an experimental realization of Hardy's thought experiment [Phys. Rev. Lett. 68, 2981 (1992)], using photons. The experiment consists of a pair of Mach-Zehnder interferometers that interact through photon bunching at a beam splitter. A striking contradiction is created between the predictions of quantum mechanics and local hidden variables. The contradiction relies on nonmaximally entangled position states of two particles. A Clauser-Horne-type inequality is derived and violated.
我们展示了哈迪思想实验[《物理评论快报》68, 2981 (1992)]的一个实验实现,该实验使用了光子。实验由一对马赫 - 曾德尔干涉仪组成,它们通过分束器处的光子聚束相互作用。量子力学的预测与局域隐变量之间产生了显著的矛盾。这种矛盾依赖于两个粒子的非最大纠缠位置态。推导并违背了一个克劳泽 - 霍恩型不等式。