Single-Photon Interference over 8.4 km Urban Atmosphere: Toward Testing Quantum Effects in Curved Spacetime with Photons
The emergence of quantum mechanics and general relativity has transformed our
understanding of the natural world significantly. However, integrating these two theories …
understanding of the natural world significantly. However, integrating these two theories …
Atomic clock locking with Bayesian quantum parameter estimation: Scheme and experiment
C Han, Z Ma, Y Qiu, R Fang, J Wu, C Zhan, M Li… - Physical Review …, 2024 - APS
Atomic clocks are crucial for science and technology, but their sensitivity is often restricted by
the standard quantum limit. To surpass this limit, correlations between particles or …
the standard quantum limit. To surpass this limit, correlations between particles or …
Twin-field quantum key distribution with local frequency reference
Twin-field quantum key distribution (TFQKD) overcomes the linear rate-loss limit, which
promises a boost of secure key rate over long distance. However, the complexity of …
promises a boost of secure key rate over long distance. However, the complexity of …
Quantum-logic-based - optical frequency standard for the redefinition of the SI second
ZY Ma, K Deng, ZY Wang, WZ Wei, P Hao, HX Zhang… - Physical Review …, 2024 - APS
Optical clocks have been demonstrated to be good choices to redefine the SI “second.” With
this goal, we have constructed a quantum-logic-based 27 Al+ ion optical clock with a …
this goal, we have constructed a quantum-logic-based 27 Al+ ion optical clock with a …
Robust High-frequency Laser Phase Noise Suppression by Adaptive Pound-Drever-Hall Feedforward
YX Chao, ZX Hua, XH Liang, ZP Yue, C Jia… - arXiv preprint arXiv …, 2024 - arxiv.org
Suppressing high-frequency laser phase noise, particularly at frequencies near and beyond
typical feedback bandwidths of a few MHz, is a critical yet challenging task in many …
typical feedback bandwidths of a few MHz, is a critical yet challenging task in many …
Entanglement-enhanced quantum metrology: from standard quantum limit to Heisenberg limit
Entanglement-enhanced quantum metrology explores the utilization of quantum
entanglement to enhance measurement precision. When particles in a probe are prepared …
entanglement to enhance measurement precision. When particles in a probe are prepared …
基于双光子跃迁的铷原子光学频率标准
张炯阳， 翟浩， 王骥， 肖玉华， 代虎， 廉吉庆… - 中国光学(中 …, 2024 - chineseoptics.net.cn
精确计时对国民经济发展, 科学技术进步以及国防军事安全等领域至关重要.
基于双光子跃迁的光学频率标准因其稳定度高, 复现性好和易于小型化等显著优势 …
基于双光子跃迁的光学频率标准因其稳定度高, 复现性好和易于小型化等显著优势 …
Optical frequency dissemination via 103-km urban fiber link with remote passive phase stabilization
X Zhang, Q Zhou, Q Zang, J Liu, T Liu, R Dong… - Optics …, 2024 - opg.optica.org
In this paper, we propose a technique for a fiber-based optical frequency dissemination
system with remote passive phase noise cancellation. At the remote site, a 1× 2 fiber …
system with remote passive phase noise cancellation. At the remote site, a 1× 2 fiber …
[PDF][PDF] 515.66 km 实地光纤链路级联时频传递的高精度时延校准
金志成， 薛申辉， 徐致远， 杨飞， 应康… - Chinese Journal of …, 2024 - researching.cn
摘要基于波分复用和时延波动的光学补偿方案, 实现北京-廊坊-保定全长515.66 km
的实地光纤链路中的时间频率信号长距离级联传递, 实现长距离链路1 PPS (pulse per second) …
的实地光纤链路中的时间频率信号长距离级联传递, 实现长距离链路1 PPS (pulse per second) …
[PDF][PDF] 6 kHz 线宽干涉滤光片型外腔半导体激光器
杨钰炜， 胡笛， 叶美凤， 熊恒， 龚浪浪… - Laser & …, 2024 - researching.cn
摘要提出一种用于星载锶光钟超稳激光光源的窄线宽1397 nm 滤光片型外腔半导体激光器(IF-
ECDL), 采用一体化的激光器构型以及殷钢材料腔体, 实现了对激光器运行过程中的温度波动及 …
ECDL), 采用一体化的激光器构型以及殷钢材料腔体, 实现了对激光器运行过程中的温度波动及 …