论文标题
延迟选择的路径被笑和cheshire猫选择的路径选择
Delayed choice of paths selected by grin and snarl of quantum Cheshire Cat
论文作者
论文摘要
所谓的量子柴郡猫是一种场景，在其中鉴定出猫的光子和其极化的成分，并在那个猫的笑容中鉴定出来。我们观察到，平均可以使用相同的技术来分离光子极化的两个正交成分。我们将光子的这些极化成分确定为猫的笑容和咆哮，以便于理解。提出了一个Gedanken实验，我们同时调整了Mach-Zhhnder干涉仪的两个臂中光子的输入极化。注意到，对于两个特定的光子极化选择，两个组件的存在在两个臂上被逆转。笑容和鼻涕的这种逆转发生在极化成分甚至与调谐器相互作用之前，即在选择每个臂的选择之前。
The so-called quantum Cheshire Cat is a scenario where a photon, identified with a cat, and a component of its polarization, identified with the grin of that cat, are separated. We observe that the same techniques can be used to separate two orthogonal components of polarization of a photon, on an average. We identify these polarization components of the photon as the grin and snarl of the cat for ease of comprehension. A gedanken experiment is presented in which we simultaneously tune the input polarizations of the photon in the two arms of a Mach-Zehnder interferometer. It is noted that for two particular choices of photon polarization, the presence of the two components gets reversed in the two arms. This reversal of the grin and the snarl occurs before the polarization components even interact with the tuners, i.e., before the choice of which arm each should be in is made.
