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Enhanced entanglement and asymmetric EPR steering between magnons

Science China(Physics,Mechanics & Astronomy) 2021年第1期64卷 55-63页

作者： Sha-Sha Zheng Feng-Xiao Sun huai-yang Yuan Zbigniew Ficek Qi-Huang Gong Qiong-Yi He State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-Optoelectronics School of Physics&Collaborative Innovation Center of Quantum MatterPeking UniversityBeijing100871China Beijing Academy of Quantum Information Sciences Beijing100193China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan030006China Institute for Theoretical Physics Utrecht University3584CCUtrechtThe Netherlands Quantum Optics and Engineering Division Institute of PhysicsUniversity of Zielona GóraZielona Góra65-516Poland

The generation and manipulation of strong entanglement and Einstein-Podolsky-Rosen(EPR)steering in macroscopic systems are outstanding challenges in modern ***,the observation of asymmetric EPR steering is important for both its fundamental role in interpreting the nature of quantum mechanics and its application as resource for the tasks where the levels of trust at different parties are highly ***,we study the entanglement and EPR steering between two macroscopic magnons in a hybrid ferrimagnet—light *** the absence of light,the two types of magnons on the two sublattices can be entangled,but no quantum steering occurs when they are damped with the same *** the presence of the cavity field,the entanglement can be significantly enhanced,and strong two-way asymmetric quantum steering appears between two magnons with equal *** is very different from the conventional protocols to produce asymmetric steering by imposing additional unbalanced losses or noises on the two parties at the cost of reducing *** essential physics is well understood by the unbalanced population of acoustic and optical magnons under the cooling effect of cavity *** finding may provide a novel platform to manipulate the quantum steering and the detection of bi-party steering provides a knob to probe the magnetic damping on each sublattice of a magnet.

关键词： quantum information magnon entanglement Einstein-Podolsky-Rosen steering cavity induced cooling

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Synthesis and helical twisting property of polymerizable chiral dopant with temperature-dependent solubility in liquid crystal

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Chinese Chemical Letters 2009年第7期20卷 873-876页

作者： Wei Huang Yu Bo Cao Xiao Guang Zhang Fa Sheng Li huai yang Department of Materials Physics and Chemistry School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China Beijing Yetop Liquid Crystal Materials Co. Ltd. Beijing 101500 China

In this study, right-handed dicinnamate isosorbide was synthesized via the esterification reaction betweefi optically active isosorbide and cinnamate. The chiral dopant was characterized by FT-IR, ^1H NMR, elemental analysis, SEM, UV absorption spectrum. After dissolving in a nematic liquid crystal mixture, the chiral dopant exhibited a temperature-dependent solubility in the chiral nematic liquid crystal mixture. Meanwhile, a relatively high value of helical twisting power of the polymerizable chiral dopant was determined. The results show that the chiral dopant has great potential in achieving a polymer stabilized chiral nematic liquid crystal film with a broad-band selective reflection. C 2009 huai yang. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

关键词： Chiral dopant Temperature-dependent solubility Liquid crystal Helical twisting power

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Protective effects of ciliary neurotrophic factor on the retinal ganglion cells by injure of hydrogen peroxide

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International Journal of Ophthalmology(English edition) 2018年第6期11卷 923-928页

作者： Wen-Jun Wang Wei Jin An-huai yang Zhen Chen Yi-Qiao Xing Eye Center Renmin Hospital of Wuhan University

AIM： To explore the effect of ciliary neurotrophic factor （CNTF） on retinal ganglion cell （RGC）-5 induced by hydrogen peroxide （H2O2）. METHODS： After cell adherence, RGC-5 culture medium was changed to contain different concentrations of H2O2 from 50 to 150 μmol/L at four time points （0.5, 1, 1.5 and 2h） to select the concentration and time point for H2O2 induced model. Two different ways of interventions for injured RGC-5 cells respectively were CNTF as an addition in the culture medium or recombinant lentiviral plasmid carrying CNTF gene transfecting bone mesenchymal stem cells （BMSCs） for co-culture with RGC-5. RESULTS： Compared to the control group, H2O2 led to RGC-5 death closely associated with concentrations and action time of H2O2 and we chose 125 μmol/L and 2h to establish the H2O2-induced model. While CNTF inhibited the loss of RGC-5 cells obviously with a dose-dependent survival rate. Nevertheless two administration routes had different survival rate yet higher rate in recombinant lentiviral plasmid group but there were no statistically significant differences. CONCLUSION： Both the two administration routes of CNTF have effects on RGC-5 cells induced by H2O2. If their own advantages were combined, there may be a better administration route.

关键词： retinal ganglion cells ciliary neurotrophic factor hydrogen peroxide neuroprotection recombinant lentiviral vector

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载脂蛋白在视网膜疾病中的作用机制研究进展

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微循环学杂志 2024年第2期34卷 102-108页

作者：万宇薇陈婷(综述) 肖璇杨安怀(审校) 武汉大学人民医院眼科中心武汉430060

载脂蛋白可以通过调节脂质运输实现视网膜脂质代谢平衡,载脂蛋白水平失调、缺失、突变会导致眼部内环境脂质代谢失衡,引起视网膜慢性炎症、脂质沉积等病理改变,诱导视网膜疾病的发生发展。在不同视网膜疾病中研究载脂蛋白家族的功能具... 详细信息

载脂蛋白可以通过调节脂质运输实现视网膜脂质代谢平衡,载脂蛋白水平失调、缺失、突变会导致眼部内环境脂质代谢失衡,引起视网膜慢性炎症、脂质沉积等病理改变,诱导视网膜疾病的发生发展。在不同视网膜疾病中研究载脂蛋白家族的功能具有重要意义。

关键词：载脂蛋白家族脂质代谢视网膜疾病

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Influence of terminal alkyl chain length on helical twisting property of chiral 1,2-propanediol derivatives

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Chinese Chemical Letters 2009年第12期20卷 1435-1438页

作者： Wei Huang Guang Da yang Zhen Yu Bian Xiao Juan Wu Guo Jing Ma Qi Huang huai yang Department of Materials Physics and Chemistry School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China National Laboratory of Electro-Optics System Technology Hebei 065201 China China Classification Society Certification Company Beijing 100006 China

In this study, a novel series of chiral 1,2-propanediol derivatives with different terminal alkyl chain length were synthesized and characterized by FT-IR, ^1H NMR and DSC. After doped into a nematic liquid crystal host, all the chiral dopants induced chiral nematic liquid crystals exhibiting a helix inversion with temperature variation. The results indicate that terminal alkyl chain length has a prominent influence on helical twisting property of the chiral dopants. With increasing the terminal alkyl chain length, the molecular twisting power increases, the helix inversion temperatures varies slightly while the phase transition temperature decreases. An odd-even effect may exist in the molecular twisting power of the chirai dopants.

关键词： Chiral dopant Liquid crystal Helix inversion Molecular twisting power

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Disk-shaped Symmetric Hexa-substituted Triphenylene Derivatives： Synthesis, Physical Properties and Self-assembly

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Chemical Research in Chinese Universities 2013年第3期29卷 495-499页

作者： WANG Dong MI Yong-sheng TANG Jian-kai LIANG Peng-xia JIN Zhao-kui yang Zhou yang huai Department of Materials Physics and Chemistry School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 P R. China

A series of triphenylene derivatives with six symmetric substituents was synthesized from hexabromotriphenylene. The synthesis was conducted by six-fold palladium-catalyzed Hagihara-Sonogashira crosscoupling reactions to yield the hexa-alkynyl substituted triphenylene derivatives of HTPI, HTP2, HTP3 and HTP4. The six symmetric substituents can not only endow the triphenylene the longer π-conjugated range, but also increase the solubility of the compounds. Their photophysical, electrochemical, thermal properties were investigated respectively. With the comparison of their properties, the structure-property relationships were established which demonstrated the influences of different substituents on the electronic nature and the mesomorphic phase of these disk-shaped molecules. In addition, with the scanning electron microscopy（SEM） and polarized optical microscopy（POM） characterization, the self-assembly behaviors of the compounds were also investigated.

关键词： Triphenylene π-Conjugated range Photophysical property Electrochemical property Self-assembly

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Nonlinear Optical Properties of Porphyrin Derivatives with Electron-donating or Electron-withdrawing Substituents

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Chinese Journal of Chemistry 2016年第4期34卷 381-386页

作者： Pengxia Liang Yongsheng Mi Jinshuai Duan Zhouyang Dong Wang Hui Cao Wanli He huai yang Department of Material Physics and Chemistry University of Science and Technology Beijing Beijing 100083 China Department of Materials Science and Engineering Peking University Beijing 100083 China

To investigate photoelectric properties of meso-extended porphyrin derivatives with electron-donating or elec- tron-withdrawing substituents, a series of functionalized porphyrin materials have been designed and synthesized by Suzuki coupling reaction. The meso-extended structures were fully characterized by IH NMR, IR spectroscopy and mass spectrometry. The photophysical properties of porphyrin derivatives were carefully examined by UV-Visible and fluorescence spectra, and the solvatochromic effect was observed and discussed. In particular, Z-scan technique was employed to characterize the third-order nonlinear optical （NLO） properties of the products such as nonlinear absorption and refraction, the third-order nonlinear refractive indexes （x（3）-value） of these porphyrin derivatives achieved 3.9 × 10-12 esu. In addition, the compounds could be self-assembled into highly organized morphologies through phase-exchange method. All the results indicated that the discotic materials have the potential for optoelec- tronic applications.

关键词： nonlinear optical porphyrin derivatives self-assembly photophysical properties

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Facile synthesis and characterization of novel thermo-chromism cholesteryl-containing hydrogen-bonded liquid crystals

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Chinese Chemical Letters 2009年第11期20卷 1303-1306页

作者： Wan Li He Tao Liu Zhou yang Dong Yu Zhao Wei Huang Hui Cao Guo Jie Wang huai yang Department of Materials Physics and Chemistry School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China

Two series of novel cholesteryl-containing H-bonded liquid crystals were prepared through facile self-assembly between cholesteryl isonicotinate （proton acceptor） exhibiting a monotropic cholesteric phase, and the 4-alkoxy-benzoic acid or 4-alkoxy cinnamic acid （proton donor）. It was found that the increase of the conjugate length as well as the terminal length can contribute to enhance the interaction of molecules and thus significantly influenced the thermal behaviors of H-bonded LCs. The cholesteric reflection spectra of the induced mesogenic complexes were located in the visible region with the color tuneable thermo-sensitivity, which could be used for display application.

关键词： Liquid crystal Hydrogen bond Self-assembly Selective reflection Thermo-chromism

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Polymer dispersed ionic liquid electrolytes with high ionic conductivity for ultrastable solid-state lithium batteries

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Carbon Energy 2023年第5期5卷 115-126页

作者： Shengyu Qin Yaping Cao Jianying Zhang Yunxiao Ren Chang Sun Shuoning Zhang Lanying Zhang Wei Hu Meina Yu huai yang School of Materials Science and Engineering Beijing Advanced Innovation Center for Materials Genome EngineeringPeking UniversityBeijingPeople's Republic of China Institute for Advanced Materials and Technology University of Science and Technology BeijingBeijingPeople's Republic of China Key Laboratory of Polymer Chemistry and Physics of Ministry of Education Peking UniversityBeijingPeople's Republic of China

Solid polymer electrolytes(SPEs)have emerged as one of the most promising candidates for building solid-state lithium batteries due to their excellent flexibility,scalability,and interfacial compatibility with ***,the low ionic conductivity and poor cyclic stability of SPEs do not meet the requirements for practical applications of lithium ***,a novel polymer dispersed ionic liquid-based solid polymer electrolyte(PDIL-SPE)is fabricated using the in situ polymerization-induced phase separation(PIPS)*** as-prepared PDIL-SPE possesses both outstanding ionic conductivity(0.74 mS cm^(-1) at 25℃)and a wide electrochemical window(up to 4.86 V),and the formed unique three-dimensional(3D)co-continuous structure of polymer matrix and ionic liquid in PDIL-SPE can promote the transport of lithium ***,the 3D co-continuous structure of PDIL-SPE effectively accommodates the severe volume expansion for prolonged lithium plating and stripping processes over 1000 h at 0.5 mA cm^(-2) under 25℃.Moreover,the LiFePO_(4)//Li coin cell can work stably over 150 cycles at a 1 C rate under room temperature with a capacity retention of 90.6%from 111.1 to 100.7 mAh g^(-1).The PDIL-SPE composite is a promising material system for enabling the ultrastable operation of solid-state lithium-metal batteries.

关键词： high ionic conductivity lithium batteries solid polymer electrolytes solid-state batteries

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A carbon-oxygen-bridged ladder-type building block for efficient donor and acceptor materials used in organic solar cells

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Science Bulletin 2017年第19期62卷 1331-1336页

作者： Zuo Xiao Fan Liu Xinjian Geng Jianqi Zhang Shizhe Wang Yujun Xie Zhen Li huai yang Yongbo Yuan Liming Ding Center for Excellence in Nanoscience (CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS)National Center for Nanoscience and Technology Department of Chemistry Wuhan University College of Engineering Peking University School of Physics & Electronics Central South University

A carbon-oxygen-bridged ladder-type donor unit （CO5） was invented and prepared via an ＂intramolecu- lar demethanolization cyclization＂ approach. Its single crystal structure indicates enhanced planarity compared with the carbon-bridged analogue indacenodithiophene （IDT）. Owing to the stronger electron-donating capability of CO5 than IDT, CO5-based donor and acceptor materials show narrower bandgaps. A donor-acceptor （D-A） copolymer donor （PCO5TPD） and an A-D-A nonfullerene acceptor （COSIC） demonstrated higher performance than IDT-based counterparts, PIDTTPD and IDTIC, respec-tively. The better performance of CO5-based materials results from their stronger light-harvesting capability and higher charge-carrier mobilities.

关键词： Ladder-type unitsCyclization reactionPlanarityCharge-carrier mobilityOrganic solar cells

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