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| 1 | 压缩态光场及其应用研究进展显示文摘1981年,Caves教授首次提出“压缩态”的概念,并指出利用压缩态光场可以提高激光干涉引力波探测的灵敏度。在过去的四十年,压缩态光场不仅成功用于突破标准量子极限的引力波探测、位移测量、位相测量等量子精密测量领域,而且基于单模压缩态制备的双模压缩态和多组份纠缠态也在量子计算、量子通信等量子信息处理中扮演着重要的作用。本文简要介绍了压缩态光场的基本概念、制备、探测方法及其在量子精密测量、量子通信、量子计算中的应用进展。 | 秦忠忠 王美红 马荣 苏晓龙 | 2022 | 激光与光电子学进展2022，59，11： | 2 |
| 2 | Experimental demonstration of robustness of Gaussian quantum coherence显示文摘Besides quantum entanglement and steering,quantum coherence has also been identified as a useful quantum resource in quantum information. It is important to investigate the evolution of quantum coherence in practical quantum channels. In this paper,we experimentally quantify the quantum coherence of a squeezed state and a Gaussian Einstein–Podolsky–Rosen (EPR) entangled state transmitted in Gaussian thermal noise channel. By reconstructing the covariance matrix of the transmitted states,quantum coherence of these Gaussian states is quantified by calculating the relative entropy. We show that quantum coherence of the squeezed state and the Gaussian EPR entangled state is robust against loss and noise in a quantum channel,which is different from the properties of squeezing and Gaussian entanglement. Our experimental results pave the way for application of Gaussian quantum coherence in lossy and noisy environments. | HAIJUN KANG DONGMEI HAN NA WANG YANG LIU SHUHONG HAO XIAOLONG SU | 2021 | Photonics Research2021，9，7： | 1 |
| 3 | Quantum photonics: feature introduction显示文摘Photons,the individual quanta of the light field,are what the science of quantum photonics is dedicatedly investigating.The manipulation and coherent control of photons in quantum photonics enables the exploration of various quantum phenomena of high fundamental interest.In the meantime,due to the fast speed and a lack of the interaction with the environment,photons are now regarded as a promising platform for the emerging quantum information processing(QIP)studies.Therefore,there is a growing number of works on quantum computing,quantum communication,and quantum metrology that are solidly based on the techniques of quantum photonics. | XIAN-MIN JIN M.S.KIM BRIAN J.SMITH | 2019 | Photonics Research2019，7，12： | 1 |
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