论文标题
了解使用路径标记的修改后的两缝实验
Understanding Modified Two-Slit Experiments using Path Markers
论文作者
论文摘要
进行了一些修饰的两缝干扰实验，显示波颗粒二元性明显的悖论。在典型的这样的实验中，应该形成干扰模式的屏幕被收敛的镜头代替。收敛镜头在两个空间分离的检测器上形成两个缝隙的图像。据称，这两个检测器中的每一个都提供了有关光子来自哪个缝隙的信息，即使它们来自干扰区域。这些实验引起了很多争论。各种反驳指出，有争议的主张涉及一些可疑的假设。然而，反驳本质上很大程度上是哲学上的，至少在原则上，人们可能希望证实那些可以检验的论点。在这里，通过引入光子的两个正交极化状态的路径标记，从理论上分析了这样的实验。分析两个检测器的极化表明，引起干扰并达到特定检测器的光子始终来自两个缝隙。通过使用可测试的量子相关性，这可以清楚地理解此类实验。
Some modified two-slit interference experiments were carried out showing an apparent paradox in wave-particle duality. In a typical such experiment, the screen, where the interference pattern is supposed to be formed, is replaced by a converging lens. The converging lens forms the images of the two slits at two spatially separated detectors. It was claimed that each of these two detectors give information about which slit a photon came from, even though they come from the region of interference. These experiments generated a lot of debate. The various refutations pointed out that the controversial claims involved some questionable assumptions. However the refutations were largely philosophical in nature, and one may like to substantiate those with arguments which are testable, at least in principle. Here such an experiment is theoretically analyzed by introducing path markers which are two orthogonal polarization states of the photon. Analyzing the polarization at the two detectors shows that the photons which give rise to interference, and reach a particular detector, always come from both the slits. This provides clarity in understanding such experiments by making use of testable quantum correlations.
