Institut für Optik, Information und Photonik, Universität Erlangen-Nürnberg, Erlangen, Germany.
Opt Lett. 2011 Apr 15;36(8):1512-4. doi: 10.1364/OL.36.001512.
We discuss the possibility of quantum interferences and entanglement of photons that exist at different intervals of time, i.e., one photon being recorded before the other has been created. The corresponding two-photon correlation function is shown to violate Bell's inequalities.
我们讨论了存在于不同时间间隔的光子的量子干涉和纠缠的可能性，即一个光子在另一个光子被创造之前被记录。相应的双光子相关函数被证明违反了贝尔不等式。
