论文标题
观察者的光子束依赖性：相对论红移对洪 - 摩曼德干扰的影响
Observer dependence of photon bunching: The influence of the relativistic redshift on Hong-Ou-Mandel interference
论文作者
论文摘要
我们研究了相对论红移对洪 - 曼德尔（HOM）干扰的影响，并对一般相对论进行了真正的量子测试。我们使用格劳伯（Glauber）的量子相干性理论来预测在非偏见的环境中，在霍姆体验中逼真的宽带光子的巧合概率。我们将先前开发的量子场理论框架扩展为描述弯曲空间中单个光子的光谱曲线的变形到多光子框架，这对于平面时空中的惯性观察者和当观察者位于弯曲的时空中时是确切的。我们发现，在频率纠缠的光子的情况下，发件人和接收器之间的相互红移可以将巧合统计量从光子束变为光子抗堆积，反之亦然。这意味着光子光谱波函数的（反）对称性是一个观察者依赖的概念，并且可以通过相对论环境中的hom示例探测。
We study the influence of the relativistic redshift on Hong-Ou-Mandel (HOM) interference, and present a genuine quantum test of general relativity. We use Glauber's theory of quantum coherence to predict the coincidence probability of realistic broadband photons in HOM-experiments in a non-relativistic setting. We extend the quantum field theoretical framework previously developed to describe the deformation of the spectral profile of single photons in curved spacetimes to a multi-photon framework, which is exact for inertial observers in a flat spacetime and an approximation when observers are located in a curved spacetime. We find that, in case of frequency entangled photons, a mutual redshift between the sender and the receiver can change the coincidence statistics from photon bunching to photon anti-bunching, and vice versa. This implies that the (anti-) symmetry of the photonic spectral wave function is an observer dependent notion, and that this can be probed via HOM-experiments in a relativistic setting.
