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Demonstration of high-dimensional controlled quantum teleportation for the first time

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Science China(Physics,Mechanics & Astronomy) 2024年第3期67卷 163-164页

作者： Yu-Bo Sheng Lan Zhou College of Electronic and Optical Engineering and College of Flexible Electronics(Future Technology) Nanjing University of Posts and TelecommunicationsNanjing 210023China College of Science Nanjing University of Posts and TelecommunicationsNanjing 210023China

Controlled quantum teleportation(CQT) [1] is the tripartite version of quantum teleportation and it allows the teleportation of an unknown quantum state under the control of a third party. Compared with low-dimensional counterparts,high-dimensional CQT can exhibit larger information transmission capacity and a higher control power [2,3].

关键词： quantum dimensional high

Diversity-Oriented Synthesis of Flavones and Isoflavones via Palladium/Norbornene Cooperative Catalysis

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Chinese Journal of Chemistry 2022年第6期40卷 675-680页

作者： Yuanyuan Ma Qianwen Gao Lan Zhou Shanshan Liu Hong-Gang Cheng Qianghui zhou Institute for Advanced Studies Wuhan UniversityWuhanHubei 430072ChinaSauvage Center for Molecular SciencesCollege of Chemistry and Molecular Sciences at Wuhan UniversityWuhanHubei 430072China Institute for Advanced Studies Wuhan UniversityWuhanHubei 430072China

Flavones and isoflavones are recognized as privileged heterocyclic scaffolds for the preparation of bioactive compounds.Efficient methods to access these heterocycles are in urgent need.Herein,we report diversity-oriented synthesis of flavones and isoflavones from 3-iodochromones via palladium/norbornene cooperative catalysis.The success of this research relies on the use of a unique bridge-head ester modified norbornene derivative as the mediator.Salient features of this include readily available starting materi-als regarding 3-iodochromones,ortho-C-H arylating and alkylating reagents and ipso-terminating reagents,broad substrate scope,good chemoselectivity,good step-economy and scalability.A large number of structurally diversified flavones,isoflavones and 2,3-diarylated chromones can be quickly prepared in a predictable manner.As showcased by the efficient formal synthesis of um-bralisib,this chemistry can be treated as another valuable addition to the toolbox of medicinal chemists.

关键词： Diversity-oriented synthesis Oxygen heterocycle Palladium Norbornene C-H activation

Distributed secure quantum machine learning

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Science Bulletin 2017年第14期62卷 1025-1029页

作者： Yu-Bo Sheng Lan Zhou Key Laboratory of Broadband Wireless Communication and Sensor Network Technology Nanjing University of Posts and Telecommunications Ministry of Education College of Mathematics & Physics Nanjing University of Posts and Telecommunications

Distributed secure quantum machine learning(DSQML) enables a classical client with little quantum technology to delegate a remote quantum machine learning to the quantum server with the privacy data preserved. Moreover, DSQML can be extended to a more general case that the client does not have enough data, and resorts both the remote quantum server and remote databases to perform the secure machine learning. Here we propose a DSQML protocol that the client can classify two-dimensional vectors to different clusters, resorting to a remote small-scale photon quantum computation processor. The protocol is secure without leaking any relevant information to the Eve. Any eavesdropper who attempts to intercept and disturb the learning process can be noticed. In principle, this protocol can be used to classify high dimensional vectors and may provide a new viewpoint and application for future ‘‘big data".

关键词：量子计算机器学习分布式安全远程数据库客户端数据保存二维矢量

Deleted in liver cancer 1 suppresses the growth of prostate cancer cells through inhibiting Rho-associated protein kinase pathway

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Asian Journal of Urology 2023年第1期10卷 50-57页

作者： Hua Gong Kang Chen Lan Zhou Yongchao Jin Weihua Chen Department of Urology Zhoupu HospitalMedicine and Health SciencesShanghai UniversityShanghaiChina Department of Urology Shanghai East HospitalSchool of MedicineTongji UniversityShanghaiChina

Objective:Deleted in liver cancer 1(DLC1)is a GTPase-activating protein that is reported as a suppressor in certain human cancers.However,the detailed biological function of DLC1 is still unclear in human prostate cancer(PCa).In the present study,we aimed to explore the function of DLC1 in PCa cells.Methods:Silencing and overexpression of DLC1 were induced in an androgen-sensitive PCa cell line(LNCaP)using RNA interference and lentiviral vector transduction.The Cell Counting Kit-8 assay was performed to determine cell proliferation.The cell cycle was examined by performing a propidium iodide staining assay.Results:Our results indicated that DLC1 overexpression markedly suppressed the proliferation and cell cycle progression of LNCaP cells.Moreover,DLC1 expression was negatively correlated with Rho-associated protein kinase(ROCK)expression in LNCaP cells.Importantly,this study showed that the ROCK inhibitor Y27632 restored the function of DLC1 in LNCaP cells and reduced the tumorigenicity of LNCaP cells in vivo.Conclusion:Our results indicated that DLC1 overexpression markedly suppressed the proliferation and cell cycle progression of PCa cells and negatively correlated with ROCK expression in PCa cells and tissue.

关键词： Cell cycle Deleted in liver cancer 1 Proliferation Prostate cancer Rho-associated protein kinase

Advances in quantum entanglement purification

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Science China(Physics,Mechanics & Astronomy) 2023年第5期66卷 1-22页

作者： Pei-Shun Yan Lan Zhou Wei Zhong Yu-Bo Sheng College of Electronic and Optical Engineering&College of Flexible Electronics(Future Technology) Nanjing University of Posts and TelecommunicationsNanjing 210023China School of Information Science and Technology Nantong UniversityNantong 226019China College of Science Nanjing University of Posts and TelecommunicationsNanjing 210023China Institute of Quantum Information and Technology Nanjing University of Posts and TelecommunicationsNanjing 210003China

Since its discovery,the quantum entanglement becomes a promising resource in quantum communication and computation.However,the entanglement is fragile due to the presence of noise in quantum channels.Entanglement purification is a powerful tool to distill high quality entangled states from the low quality entangled states.In this review,we present an overview of entanglement purification,including the basic entanglement purification theory,the entanglement purification protocols(EPPs)with linear optics,EPPs with cross-Kerr nonlinearities,hyperentanglement EPPs,deterministic EPPs,and measurement-based EPPs.We also review experimental progress of EPPs in linear optics.Finally,we give the discussion on potential outlook for the future development of EPPs.This review may pave the way for practical implementations in future long-distance quantum communication and quantum network.

关键词： entanglement entanglement purification quantum communication

Accessible technology enables practical quantum secret sharing

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Science China(Physics,Mechanics & Astronomy) 2023年第6期66卷 211-211页

The security of modern communication systems,which is based on computational complexity,is increasingly threatened,particularly with the rapid development of quantum computers.Fortunately,quantum communication is able... 详细信息

关键词： quantum enable complexity

Construction and properties of venlafaxine hydrochloride sustained release system based on hollow mesoporous silica microspheres

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Particuology 2024年第3期86卷 205-210页

作者： Chenjing Liang Lingling Shi Zhengguo Chen Lan Zhou Zhaoxia Zhang Guoqing Zhang School of Materials Science and Engineering Zhejiang Sci-tech UniversityHangzhouChina College of Textile Science and Engineering Zhejiang Sci-tech UniversityHangzhouChina Zhejiang Provincial Innovation Center of Advanced Textile Technology ShaoxingChina

The aim of this work is to develop a venlafaxine hydrochloride sustained release system based on hollow mesoporous silica microspheres(HMSMs).HMSMs were innovatively prepared with tetraethyl silicate(TEOS)as the precursor and volatile n-heptane as a soft template.The obtained HMSMs show a well-defined hollow structure with an average size of 967 nm and pore volume of 0.85 cm^(3)/g,implying it is a potential drug carrier.Subsequently,venlafaxine hydrochloride(VF)was absorbed in the HMSMs with a content of 37.67% or so.The sustained release effect is further measured by the dissolution in-strument at 37℃ and 50 rpm in ultrapure water.The results showed that the HMSMs/VF system shows good sustained release properties compared with sustained release tablets with hydroxypropyl meth-ylcellulose as the main component.This HMSMs sustained release system appears to be a promising candidate for a sustained drug release.

关键词： Hollowmesoporous silica microspheres(HMSMs) Venlafaxine hydrochloride Drug loading Sustained release

A step toward fault-tolerant distributed quantum computing:Entangling nonlocal logical-qubit with optical quantum multiplexing

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Science China(Physics,Mechanics & Astronomy) 2024年第2期67卷 189-189页

Quantum entanglement is crucial not only for fundamental physics but also for various applications^([1]),ranging from quantum communication and quantum computation to quantum metrology.Its distribution over long-distance channels^([2])becomes resource-intensive as the influence of channel loss increases exponentially with distance.

关键词： quantum exponentially fault

Ultrafast quasi-three-dimensional imaging

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International Journal of Extreme Manufacturing 2023年第4期5卷 501-512页

作者： Yiling Lian lan Jiang Jingya Sun Jiadong zhou Yao zhou Laser Micro/Nano Fabrication Laboratory School of Mechanical EngineeringBeijing Institute of TechnologyBeijing 100081People’s Republic of China Yangtze Delta Region Academy of Beijing Institute of Technology Jiaxing 314019People’s Republic of China Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120People’s Republic of China Centre for Quantum Physics Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement(MOE)School of PhysicsBeijing Institute of TechnologyBeijing 100081People’s Republic of China Advanced Research Institute of Multidisciplinary Sciences Beijing Institute of TechnologyBeijing 100081People’s Republic of China

Understanding laser induced ultrafast processes with complex three-dimensional(3D)geometries and extreme property evolution offers a unique opportunity to explore novel physical phenomena and to overcome the manufacturing limitations.Ultrafast imaging offers exceptional spatiotemporal resolution and thus has been considered an effective tool.However,in conventional single-view imaging techniques,3D information is projected on a two-dimensional plane,which leads to significant information loss that is detrimental to understanding the full ultrafast process.Here,we propose a quasi-3D imaging method to describe the ultrafast process and further analyze spatial asymmetries of laser induced plasma.Orthogonally polarized laser pulses are adopted to illuminate reflection-transmission views,and binarization techniques are employed to extract contours,forming the corresponding two-dimensional matrix.By rotating and multiplying the two-dimensional contour matrices obtained from the dual views,a quasi-3D image can be reconstructed.This successfully reveals dual-phase transition mechanisms and elucidates the diffraction phenomena occurring outside the plasma.Furthermore,the quasi-3D image confirms the spatial asymmetries of the picosecond plasma,which is difficult to achieve with two-dimensional images.Our findings demonstrate that quasi-3D imaging not only offers a more comprehensive understanding of plasma dynamics than previous imaging methods,but also has wide potential in revealing various complex ultrafast phenomena in related fields including strong-field physics,fluid dynamics,and cutting-edge manufacturing.

关键词： ultrafast imaging extraction and reconstruction quasi-three-dimension plasma diffraction