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| 1 | Bosonic quantum error correction codes in superconducting quantum circuits显示文摘Quantum information is vulnerable to environmental noise and experimental imperfections,hindering the reli-ability of practical quantum information processors.Therefore,quantum error correction(QEC)that can pro-tect quantum information against noise is vital for universal and scalable quantum computation.Among many different experimental platforms,superconducting quantum circuits and bosonic encodings in superconducting microwave modes are appealing for their unprecedented potential in QEC.During the last few years,bosonic QEC is demonstrated to reach the break-even point,i.e.the lifetime of a logical qubit is enhanced to exceed that of any individual components composing the experimental system.Beyond that,universal gate sets and fault-tolerant operations on the bosonic codes are also realized,pushing quantum information processing towards the QEC era.In this article,we review the recent progress of the bosonic codes,including the Gottesman-Kitaev-Preskill codes,cat codes,and binomial codes,and discuss the opportunities of bosonic codes in various quantum applications,ranging from fault-tolerant quantum computation to quantum metrology.We also summarize the challenges associated with the bosonic codes and provide an outlook for the potential research directions in the long terms. | Weizhou Cai Yuwei Ma Weiting Wang Chang-Ling Zou Luyan Sun | 2021 | Fundamental Research2021，1，1： | 3 |
| 2 | Experimental repetitive quantum channel simulation显示文摘Universal control of quantum systems is a major goal to be achieved for quantum information processing,which demands thorough understanding of fundamental quantum mechanics and promises applications of quantum technologies. So far, most studies concentrate on ideally isolated quantum systems governed by unitary evolutions, while practical quantum systems are open and described by quantum channels due to their inevitable coupling to environment. Here, we experimentally simulate arbitrary quantum channels for an open quantum system, i.e. a single photonic qubit in a superconducting quantum circuit.The arbitrary channel simulation is achieved with minimum resource of only one ancilla qubit and measurement-based adaptive control. By repetitively implementing the quantum channel simulation,we realize an arbitrary Liouvillian for a continuous evolution of an open quantum system for the first time. Our experiment provides not only a testbed for understanding quantum noise and decoherence,but also a powerful tool for full control of practical open quantum systems. | Ling Hu Xianghao Mu Weizhou Cai Yuwei Ma Yuan Xu Haiyan Wang Yipu Song Chang-Ling Zou Luyan Sun | 2018 | Science Bulletin2018，63，23： | 2 |
| 3 | Degradable Hybrid CuS Nanoparticles for Imaging-Guided Synergistic Cancer Therapy via Low-Power NIR-II Light Excitation显示文摘Near-infrared(NIR)-II light-excitable photonic agents capable of generating tumor hyperthermia and cytotoxic free radicals are promising for synergistic phototherapy of tumors.However,the lack of NIR-II excitable agents makes it challenging to achieve combinational tumor phototherapy.Here,the authors have reported on a tumor-targeting and degradable hybrid copper sulfide(CuS)nanoparticle(AIBA@CuS-FA)via loading a hydrophilic Azo initiator(AIBA)into an amphiphilic lipid-encapsulating CuS nanoparticle.AIBA@CuS-FA shows high photothermal conversion efficiency(PCE≈47.5%)at 1064 nm,enabling heat production to trigger tumor hyperthermia and thermal decomposition of AIBA into cytotoxic free alkyl radicals upon irradiation with a 1064-nm laser under low-power density(0.5 W/cm2).Moreover,alkyl radicals can drive degradation of AIBA@CuS-FA and embedded CuS nanodisks,releasing Cu^(2+)ions that can catalyze a Fenton-like reaction for hydroxyl radical(•OH)production to promote tumor therapy.Findings demonstrate promise for combinational photothermal therapy(PTT),oxygen-independent alkyl radical therapy,and chemodynamic therapy(CDT)of tumors. | Yidan Sun Hua Shi Xiaoyang Cheng Luyan Wu Yuqi Wang Zhengyang Zhou Jian He Hong-Yuan Chen Deju Ye | 2021 | CCS Chemistry2021，3，5： | 2 |
| 4 | Comparison Study on the Microstructure of Nanocrystalline TiO_2 in Different Ti-Si Binary Oxides显示文摘三不同 Ti-Si 氧化物 structuares ,硅石支持了 titania ,硅石涂的 titania 和亲密地混合的 silica-titania ,包含10%-40% SiO2 ,被 nanocrystalline ( nc )的微观结构参数的 sol-gelprocess.The 变化在二进制氧化物的三 kirds 成为TiO2锐钛矿包括在里面飞机间距 d ,电池常数( a0 , C0 ),房间体积 V ,房间轴比 c0/a0 和水晶谷物缩放,被高决定传播电子显微镜学( HRTEM )和X光检查衍射( XRD )比较地调查。微观结构参数与增加 SiO2 内容显著地变化,这被发现, annealingtemperature.Different 组织了 Ti-Si 二进制氧化物导致微观结构参数的不同变化趋势。二进制氧化物包含越多 SiO2, ncTiO2 锐钛矿的缺点越格子出现; Si 阳离子的散开或移植能是在微观结构的变化的一个重要有影响的因素。在三种二进制氧化物的 nc TiO2 的谷物尺寸不仅取决于 SiO2 内容和退火的温度而且在 nc TiO2-anatase.Both 谷物尺寸和 nc 的阶段转变的格子 microstrainand 失真的度上, TiO2 锐钛矿是有效地与增加 SiO2 内容禁止了。 | Luyan WANG Yanping SUN Bingshe XU | 2007 | Journal of Materials Science & Technology2007，23，5： | 1 |
| 5 | Study on Hyperspectral Estimation Model of Chlorophyll Content in Grape Leaves显示文摘In view of the shortage of using traditional methods to monitor chlorophyll content,hyperspectral technology was used to estimate the chlorophyll content of grape leaves rapidly,accurately and non-destructively. Based on the data of hyperspectral reflectivity and SPAD value of grape leaves collected from Wanjishan grape planting base in Tai'an,the correlations of SPAD value with the original spectral reflectivity of grape leaves and its first derivative were analyzed to select sensitive bands,and an estimation model of chlorophyll content in grape leaves based on hyperspectral reflectivity was established. The best model was SPAD =59. 352 + 44 836. 313 R'_(601). | Luyan NIU Chunyan GAO Jiabo SUN Yanzhong LIU Xiaoyan ZHANG Fengyun WANG | 2018 | Agricultural Biotechnology2018，7，4： | 1 |
| 6 | Estimation of recombination frequency in bi-parental genetic populations显示文摘 | ZIQI SUN HUIHUI LI LUYAN ZHANG JIANKANG WANG | 2012 | Genetics Research2012，，3： | 1 |
| 7 | An activatable ratiometric near-infrared fluorescent probe for hydrogen sulfide imaging in vivo显示文摘Ratiometric fluorescent probes hold great promise for in vivo imaging;however,stimuli-activatable ratiometric probes with fluorescence emissions in near-infrared(NIR)region are still very few.Herein,we report a hydrogen sulfide(H_2S)-activatable ratiometric NIR fluorescent probe(1-SPN)by integrating a H_2S-responsive NIR fluorescent probe 1 into a H_2S-inert poly[2,6-(4,4-bis-(2-ethylhexyl)-4 H-cyclopenta[2,1-b;3,4-b′]dithiophene)-alt-4,7(2,1,3-benzothiadiazole)](PCPDTBT)-based NIR semiconducting polymer nanoparticle(SPN).1-SPN shows'always on'PCPDTBT fluorescence at 830 nm and weak probe 1 fluorescence at 725 nm under excitation at 680 nm.The ratio of NIR fluorescence intensities between 725 and 830 nm(I_(725)/I_(830))is small.Upon interaction with H_2S,the fluorescence at 725 nm is rapidly switched on,resulting in a large enhancement of I_(725)/I_(830),which is allowed for sensitive visualization and quantification of H_2S concentrations in living cells.Taking advantage of enhanced tissue penetration depth of NIR fluorescence,1-SPN is also applied for real-time ratiometric fluorescence imaging of hepatic and tumor H_2S in living mice.This study demonstrates that activatable ratiometric NIR fluorescent probes hold great potential for in vivo imaging. | Luyan Wu Wenhui Zeng Liandong Feng Yuxuan Hu Yidan Sun Yingxiao Yan Hong-Yuan Chen Deju Ye | 2020 | Science China Chemistry2020，63，5： | 0 |
| 8 | Chemical compositions and biological activities of Flos lonicerae显示文摘Flos lonicerae is the dry flower bud of Lonicera japonica Thunb,and it is a very important Chinese herbal medicine in China.In ancient times,it was widely used to treat the exopathogenic wind-heat,epidemic febrile diseases,sores,carbuncles and some infectious diseases.Modern pharmacological research has indicated that it has anti-inflammatory,anti-bacterial,anti-viral and anti-oxidation activities.This paper reviews the chemical compositions and biological activities of Flos lonicerae in order to provide reference for its application in clinical practice in the future. | Yi’an Shi Luming Pan Luyan Yang Jing Sun Meng Zhang Yu Chen | 2023 | Asian Journal of Traditional Medicines2023，18，2： | 0 |
| 9 | External control of qubit-photon interaction and multi-qubit reset in a dissipative quantum network显示文摘A quantum network is a promising quantum many-body system because of its tailored geometry and controllable interaction. Here,we propose an external control scheme for the qubit-photon interaction and multiqubit reset in a dissipative quantum network,which comprises superconducting circuit chains with microwave drives and filter-filter couplings. The traditional multiqubit reset of the quantum network requires physically disconnected qubits to prevent their entanglement. However, we use an original effect of dissipation, i.e., consuming the entanglement generated by qubits’ interaction, to achieve an external control of the multiqubit reset in an always-connected superconducting circuit. The reset time is independent of the number of qubits in the quantum network. Our proposal can tolerate considerable fluctuations in the system parameters and can be applicable to higherdimensional quantum networks. | Xian-Peng Zhang Li-Tuo Shen Yuan Zhang Luyan Sun Huaizhi Wu Zhen-Biao Yang Zhang-Qi Yin | 2021 | Science China(Physics,Mechanics & Astronomy)2021，64，5： | 0 |
| 10 | Chemically recyclable polyesters from CO_(2),H_(2),and 1,3-butadiene显示文摘Chemically recyclable solid polymeric materials with commercializable properties only using CO_(2)and inexpensive bulk chemicals as chemical feedstock can open a brand-new avenue to economically viable,large-scale fixation of CO_(2)over a long period of time.Despite previous great advancements,development of such a kind of CO_(2)-based polymers remains a longterm unsolved research challenge of great significance. | Yongjia Lou Luyan Xu Ninglin Gan Yunyan Sun Bo-Lin Lin | 2022 | The Innovation2022，3，2： | 0 |
| 11 | Research on Estimation Models of Chlorophyll Content in Apple Leaves Based on Imaging Hyperspectral Data显示文摘In view of the shortage of using traditional methods to monitor chlorophyll content,hyperspectral technology was used to estimate the chlorophyll content of apple leaves rapidly,accurately and non-destructively. Based on the data of hyperspectral reflectivity and SPAD value of normal apple leaves and the leaves under the stress of red spiders collected from the Wanjishan base in Tai'an,the correlations of SPAD value with the original spectral reflectivity of apple leaves and its first derivative and between SPAD value and high spectral value were analyzed to select sensitive bands,and the estimation models of chlorophyll content in apple leaves based on hyperspectral reflectivity were established. The sensitive bands of chlorophyll content in normal apple leaves were 513-539,564-585,694,699 and 720 nm,and the best estimation model of chlorophyll content was SPAD = 152. 450-1 884. 851 R377. The sensitive bands of chlorophyll content in the leaves under the stress of red spiders were 961,972 and 720 nm,and the best estimation model of chlorophyll content was SPAD = 49. 371-46 428. 473 R'972. | Luyan NIU Xiaoyan ZHANG Jiabo SUN Jiye ZHENG Fengyun WANG | 2018 | Agricultural Biotechnology2018，7，5： | 0 |
| 12 | Spectral Characteristics Comparison of Two Summer Corn Cultivars under Different Fertilization Treatments显示文摘This study is aimed to explore the spectrum reflection characteristics of summer corn leaves in different fertilization conditions.Using hyperspectral remote sensing technology,the experiments were conducted in fields to collect the hyperspectral images of Denghai 605( DH605) and Ludan 981( LD981) in different growth period under five fertilization treatments,and then the reflectance of corn ear leaves was extracted by ENVI software. The five fertilization treatments included the control( CK) with no fertilization,40 kg and 30 kg of controlled-release fertilizer per 666. 67 m2 as base( K40 and K30),50 kg and 40 kg of compound fertilizer per 666. 67 m2 as base with 15 kg urea as seed fertilizer( F50 + N and F40 + N). The reflectance spectrums of the two corn cultivars under different fertilization treatments showed the approximately same changing trend with a reflection peak at green band( 550 nm) and a higher reflection platform at near infrared band( 760 nm-1050 nm). At the heading to filling stage,the reflectance of DH605 and LD981 was the highest under the CK,followed by the K30 and F40 + N respectively. At the filling to dough stage,the reflectance of DH605 and LD981 was the highest under the treatment K30 and F40 + N respectively,which was obviously higher than that of the other treatments. In the conditions of compound fertilizer,except the late filling stage,LD981 had little higher reflectance than DH605 at the other stages. In the conditions of controlled-release fertilizer and at dough to mature stage,LD981 had obviously higher reflectance compared to the other stages,and also higher than that of DH605; there was not obvious difference in reflectance LD981 and DH605 at the other stages. | Luyan NIU Fengyun WANG Jiabo SUN Jiye ZHENG Xiaoyan ZHANG | 2017 | Asian Agricultural Research2017，9，11： | 0 |
| 13 | Stimulated Brillouin interaction between guided phonons and photons in a lithium niobate waveguide显示文摘The Brillouin scattering is one of the strongest nonlinear optical effects in dielectrics[1].In particular,the backward Brillouin scattering(BBS)provides an efficient method to achieve low-noise optical gain for active photonics[2]and the coherent interconnects between 10 GHz phonons and photons[3].However,previous studies on BBS are primarily limited to the unconfined phonons[1]or phonon confined in suspended structures[4-6]. | Yuan-Hao Yang Jia-Qi Wang Zheng-Xu Zhu Xin-Biao Xu Qiang Zhang Juanjuan Lu Yu Zeng Chun-Hua Dong Luyan Sun Guang-Can Guo Chang-Ling Zou | 2024 | Science China(Physics,Mechanics & Astronomy)2024，67，1： | 0 |
| 14 | Surface chemical structure of titania-silica nanocomposite powder显示文摘Titania-silica (TS) nanocomposite powder with three different composite structures, containing 10―30 mol% SiO2 in each structure, have been prepared by sol-gel processes. The surface characteristics of these titania-silica samples have been investigated by X-ray photo-emission spectroscopy (XPS) and high resolution transmission electron microscopy (HRTEM). The study for all TS oxides annealed at 773 and 1173 K showed: an abnormal surface enrichment in Si increased with increasing annealing temperature; the Ti3+, Ti2+, Si3+ and Si2+ oxides coexisted with Ti4+ and Si4+ oxides, and the contents of these Ti/Si suboxides increased with increasing SiO2 content and annealing temperature; there was a layer rich in O on the topmost surface and the excess O could be attributed to the chemadsorption of H2O; different composite structures could lead to different contents of Ti/Si suboxides. These results indi- cated that the surface of TS oxide powder derived by sol-gel process was a double layer with enriched O first and then SiOx/TiOy (x, y<2). Ti/Si suboxides could result from the thermal diffusion of Ti4+ and Si4+, which might be induced by the strong interaction between Ti4+ and Si4+. | WANG LuYan SUN YanPingi XU BingShe | 2008 | Chinese Science Bulletin2008，53，19： | 0 |
| 15 | Thermal Runaway Characteristics and Modeling of LiFePO4 Power Battery for Electric Vehicles显示文摘LiFePO_(4)(LFP)lithium-ion batteries have gained widespread use in electric vehicles due to their safety and longevity,but thermal runaway(TR)incidents still have been reported.This paper explores the TR characteristics and modeling of LFP batteries at different states of charge(SOC).Adiabatic tests reveal that TR severity increases with SOC,and five stages are identified based on battery temperature evolution.Reaction kinetics parameters of exothermic reactions in each TR stage are extracted,and TR models for LFP batteries are established.The models accurately simulate TR behaviors at different SOCs,and the simulated TR characteristic temperatures also agree well with the experimental results,with errors of TR characteristic temperatures less than 3%.The prediction errors of TR characteristic temperatures under oven test conditions are also less than 1%.The results provide a comprehensive understanding of TR in LFP batteries,which is useful for battery safety design and optimization. | Tao Sun Luyan Wang Dongsheng Ren Zhihe Shi Jie Chen Yuejiu Zheng Xuning Feng Xuebing Han Languang Lu Li Wang Xiangming He Minggao Ouyang | 2023 | Automotive Innovation2023，6，3： | 0 |
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