论文标题
空间纠缠和国家工程通过四光顿洪 - 摩曼特干扰
Spatial entanglement and state engineering via four-photon Hong-Ou-Mandel interference
论文作者
论文摘要
纠缠现象是量子信息和量子通信过程的基础。目前，具有大量光子的纠缠系统引起了极大的兴趣，因为它们为基于光子学的流媒体技术提供了平台。在本文中，我们介绍了一种用四个光子操作并基于Hong-Ou-Mandel（HOM）干扰的设备。提出的装置允许最大化空间纠缠的程度，并产生高度纠缠的四维钟状状态。此外，在不同机制中使用干涉仪会导致巧合概率的快速干扰条纹，其振荡周期是泵波长的两倍。我们在理论模拟与实验结果之间有很好的一致性。
The phenomenon of entanglement is the basis of quantum information and quantum communication processes. Entangled systems with a large number of photons are of great interest at present because they provide a platform for streaming technologies based on photonics. In this paper we present a device which operates with four-photons and based on the Hong-Ou-Mandel (HOM) interference. The presented device allows to maximize the degree of spatial entanglement and generate the highly entangled four-dimensional Bell states. Furthermore, the use of the interferometer in different regimes leads to fast interference fringes in the coincidence probability with period of oscillations twice smaller than the pump wavelength. We have a good agreement between theoretical simulations and experimental results.
