Ham Byoung S
Center for Photon Information Processing, School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, 123 Chumdangwagi-ro, Buk-gu, Gwangju, 61005, South Korea.
Sci Rep. 2021 May 31;11(1):11388. doi: 10.1038/s41598-021-90694-6.
A novel method of macroscopically entangled light-pair generation is presented for a quantum laser using randomness-based deterministic phase control of coherent light in a coupled Mach-Zehnder interferometer (MZI). Unlike the particle nature-based quantum correlation in conventional quantum mechanics, the wave nature of photons is applied for collective phase control of coherent fields, resulting in a deterministically controllable nonclassical phenomenon. For the proof of principle, the entanglement between output light fields from a coupled MZI is examined using the Hong-Ou-Mandel-type anticorrelation technique, where the anticorrelation is a direct evidence of the nonclassical features in an interferometric scheme. For the generation of random phase bases between two bipartite input coherent fields, a deterministic control of opposite frequency shifts results in phase sensitive anticorrelation, which is a macroscopic quantum feature.
本文提出了一种用于量子激光器的宏观纠缠光对产生的新方法，该方法利用耦合马赫-曾德尔干涉仪（MZI）中基于随机性的相干光确定性相位控制。与传统量子力学中基于粒子性质的量子关联不同，光子的波动性质被应用于相干场的集体相位控制，从而产生一种可确定性控制的非经典现象。为了验证原理，使用洪-欧-曼德尔型反关联技术研究了耦合MZI输出光场之间的纠缠，其中反关联是干涉测量方案中非经典特征的直接证据。为了在两个二分输入相干场之间生成随机相位基，对相反频移的确定性控制导致相位敏感反关联，这是一种宏观量子特征。
