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| 1 | The next detectors for gravitational wave astronomy显示文摘This paper focuses on the next detectors for gravitational wave astronomy which will be required after the current ground based detectors have completed their initial observations, and probably achieved the first direct detection of gravitational waves. The next detectors will need to have greater sensitivity, while also enabling the world array of detectors to have improved angular resolution to allow localisation of signal sources. Sect. 1 of this paper begins by reviewing proposals for the next ground based detectors,and presents an analysis of the sensitivity of an 8 km armlength detector, which is proposed as a safe and cost-effective means to attain a 4-fold improvement in sensitivity. The scientific benefits of creating a pair of such detectors in China and Australia is emphasised. Sect. 2 of this paper discusses the high performance suspension systems for test masses that will be an essential component for future detectors, while sect. 3 discusses solutions to the problem of Newtonian noise which arise from fluctuations in gravity gradient forces acting on test masses. Such gravitational perturbations cannot be shielded, and set limits to low frequency sensitivity unless measured and suppressed. Sects. 4 and 5 address critical operational technologies that will be ongoing issues in future detectors. Sect. 4 addresses the design of thermal compensation systems needed in all high optical power interferometers operating at room temperature. Parametric instability control is addressed in sect. 5. Only recently proven to occur in Advanced LIGO, parametric instability phenomenon brings both risks and opportunities for future detectors. The path to future enhancements of detectors will come from quantum measurement technologies. Sect. 6 focuses on the use of optomechanical devices for obtaining enhanced sensitivity, while sect. 7 reviews a range of quantum measurement options. | BLAIR David JU Li ZHAO ChunNong WEN LinQing MIAO HaiXing CAI RongGen GAO JiangRui LIN XueChun LIU Dong WU Ling-An ZHU ZongHong HAMMOND Giles PAIK Ho Jung FAFONE Viviana ROCCHI Alessio BLAIR Carl MA YiQiu QIN JiaYi PAGE Michael | 2015 | Science China(Physics,Mechanics & Astronomy)2015，58，12： | 3 |
| 2 | Generation of a continuous-variable quadripartite cluster state multiplexed in the spatial domain显示文摘As a highly entangled quantum network, the cluster state has the potential for greater information capacity and use in measurement-based quantum computation. Here, we report generating a continuous-variable quadripartite'square' cluster state of multiplexing orthogonal spatial modes in a single optical parametric amplifier(OPA),and further improve the quality of entanglement by optimizing the pump profile. We produce multimode entanglement of two first-order Hermite–Gauss modes within one beam in a single multimode OPA and transform it into a cluster state by phase correction. Furthermore, the pump-profile dependence of the entanglement of this state is explored. Compared with fundamental mode pumping, an enhancement of approximately 33% is achieved using the suitable pump-profile mode. Our approach is potentially scalable to multimode entanglement in the spatial domain. Such spatial cluster states may contribute to future schemes in spatial quantum information processing. | CHUNXIAO CAI LONG MA JUAN LI HUI GUO KUI LIU HENGXIN SUN RONGGUO YANG JIANGRUI GAO | 2018 | Photonics Research2018，6，5： | 3 |
| 3 | Generation of squeezed states of light in arbitrary complex amplitude transverse distribution显示文摘The squeezed state is important in quantum metrology and quantum information.The most effective generation tool known is the optical parametric oscillator(OPO).Currently,only the squeezed states of lower-order spatial modes can be generated by an OPO.However,the squeezed states of higher-order spatial modes are more useful for applications such as quantum metrology,quantum imaging,and quantum information.A major challenge for future applications is efficient generation.Here we use cascaded phase-only spatial light modulators to modulate the amplitude and phase of the incident fundamental mode squeezed state.This efficiently generates a series of squeezed higher-order Hermite–Gauss modes and a squeezed arbitrary complex amplitude distributed mode.The method may yield new applications in biophotonics,quantum metrology,and quantum information processing. | LONG MA HUI GUO HENGXIN SUN KUI LIU BIDA SU AND JIANGRUI GAO | 2020 | Photonics Research2020，8，9： | 2 |
| 4 | High power single frequency Nd: YVO4 laser 显示文摘 | WANG Shaokai GAO Jiangrui | 2002 | Proceedings of SPIE2002，4914，： | 1 |
| 5 | Application of an All-solid-state, Frequency-doubled Nd: YAP Laser to the Generation of Twin Beams at 1080 nm 显示文摘 | RUIXIANG GUO JULIEN LAURAT JIANGRUI GAO | 2002 | Applied Optics2002，41，12： | 1 |
| 6 | Generation of continuous-variable high-dimensional entanglement with three degrees of freedom and multiplexing quantum dense coding显示文摘High-dimensional entanglement is a critical foundation for the growing demand for information capacity to implement the high-capacity quantum task.Here,we report continuous-variable high-dimensional entanglement with three degrees of freedom(frequency,polarization,and orbital angular momentum)directly generated with a single type-II optical parametric oscillator(OPO)cavity.By compensating both for dispersion in frequency modes and astigmatism in higher-order transverse modes,the OPO is capable of oscillating simultaneously and outputting thousands of entanglement pairs.The three degrees of freedom high-dimensional entanglement are verified simultaneously possessing frequency comb,spin,and orbital angular momentum entanglement via 14pairs of Hermite–Gaussian mode correlations measurement.Then,the“space-frequency”multiplexing quantum dense coding communication is also demonstrated by using the entanglement resource.It shows the great superiority of high-dimensional entanglement in implementing the high-capacity quantum task.Apart from an increased channel capacity,it is possible to conduct deterministic high-dimensional quantum protocols,quantum imaging,and especially quantum computing. | HUI GUO NA LIU ZHI LI RONGGUO YANG HENGXIN SUN KUI LIU JIANGRUI GAO | 2022 | Photonics Research2022，10，12： | 1 |
| 7 | Gravitational wave astronomy: the current status显示文摘In the centenary year of Einstein's General Theory of Relativity, this paper reviews the current status of gravitational wave astronomy across a spectrum which stretches from attohertz to kilohertz frequencies. Sect. 1 of this paper reviews the historical development of gravitational wave astronomy from Einstein's first prediction to our current understanding the spectrum. It is shown that detection of signals in the audio frequency spectrum can be expected very soon, and that a north-south pair of next generation detectors would provide large scientific benefits. Sect. 2 reviews the theory of gravitational waves and the principles of detection using laser interferometry. The state of the art Advanced LIGO detectors are then described. These detectors have a high chance of detecting the first events in the near future. Sect. 3 reviews the KAGRA detector currently under development in Japan,which will be the first laser interferometer detector to use cryogenic test masses. Sect. 4 of this paper reviews gravitational wave detection in the nanohertz frequency band using the technique of pulsar timing. Sect. 5 reviews the status of gravitational wave detection in the attohertz frequency band, detectable in the polarisation of the cosmic microwave background, and discusses the prospects for detection of primordial waves from the big bang. The techniques described in sects. 1–5 have already placed significant limits on the strength of gravitational wave sources. Sects. 6 and 7 review ambitious plans for future space based gravitational wave detectors in the millihertz frequency band. Sect. 6 presents a roadmap for development of space based gravitational wave detectors by China while sect. 7 discusses a key enabling technology for space interferometry known as time delay interferometry. | BLAIR David JU Li ZHAO ChunNong WEN LinQing CHU Qi FANG Qi CAI RongGen GAO JiangRui LIN XueChun LIU Dong WU Ling-An ZHU ZongHong REITZE David H. ARAI Koji ZHANG Fan FLAMINIO Raffaele ZHU XingJiang HOBBS George MANCHESTER Richard N. SHANNON Ryan M. BACCIGALUPI Carlo GAO Wei XU Peng BIAN Xing CAO ZhouJian CHANG ZiJing DONG Peng GONG XueFei HUANG ShuangLin JU Peng LUO ZiRen QIANG Li'E TANG WenLin WAN XiaoYun WANG Yue XU ShengNian ZANG YunLong ZHANG HaiPeng LAU Yun-Kau NI Wei-Tou | 2015 | Science China(Physics,Mechanics & Astronomy)2015，58，12： | 1 |
| 8 | Generation of continuous-variable high-dimensional entanglement with three degrees of freedom and multiplexing quantum dense coding:publisher's note显示文摘This publisher's note corrects the authorship in Photon.Res.10,2828(2022). | Hui Guo Na Liu Zhi Li Rongguo Yang Hengxin Sun Kui Liu Jiangrui Gao | 2023 | Photonics Research2023，11，3： | 0 |
| 9 | The Quantum Coherence Effects in Degenerate Two-level Atomic System显示文摘 | Junxiang Zhang Yabin Dong Haihong Wang Jiangrui Gao | 2006 | 量子光学学报2006，12，B08： | 0 |
| 10 | Entanglement Swapping and Quantum Correlation Transferring显示文摘 | Jiangrui Gao | 2006 | 量子光学学报2006，12，B08： | 0 |
| 11 | Analysis of synergy degree and its influencing factors in hydropower EPC project management显示文摘The use of engineering procurement construction (EPC) mode is currently a trend in hydropower engineering construction. The clarification of the internal relationship between hydropower EPC projects and the realization of synergy has great significance in improving management efficiency and implementation effect. In this work, a three-dimensional system and a system model of hydropower EPC project management synergy are constructed. The mechanism and factors that influence the degree of management synergy are analyzed on the basis of management synergy theory. Furthermore, the evaluation index system and the degree of synergy model are established, and grey relational analysis is utilized to identify the key factors that affect the synergy degree. Thus, this study aims to facilitate the hydropower EPC project management synergy, provide a quantitative method for synergy degree evaluation, and propose corresponding promotion strategies. Results show that the order degree of each subsystem presents a steady upward trend. Specifically, the order degree of the subsystem at the trial operation stage is low, which is the major restriction on the further improvement of the synergy degree of EPC project management. The key factors in improving the synergy level of hydropower EPC project management are mainly concentrated in the information and organization synergy subsystems, including the construction degree of information platform, the performance of functions, the timeliness of information transfer, and the functions of the information platform. | Jiwei ZHU Hua GAO Jiangrui WANG | 2021 | Frontiers of Engineering Management2021，8，3： | 0 |
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