报告介绍 报告简介: 　　Bell's inequalities can be seen as a family of entanglement witnesses, with a very special property: they detect entanglement without need of prior knowledge on the nature of the system or the measurements. For this reason, they can be used for ``device-independent" assessment.In this talk, I shall review the main results in device-independent quantum cryptography, randomness gene...

报告介绍 报告简介: 　　It is known that the physical principle of "no-signaling" alone does not single out quantum correlations, and that the post-quantum no-signaling correlations share many of the features that are supposed to define quantum physics (intrinsic randomness, no-cloning, violation of Bell's inequalities...). This talk focuses on the principle ofInformation Causality (IC), which gener...

报告介绍 报告摘要:　　Powering our planet with a sustainable energy supply is not only critical to improving the quality of life but also is becoming essential to meeting the ever increasing demand of energy by a growing world population. Fossil fuels, the main energy sources that we depend on today, have negative impact on our environment and are limited in supply. It becomes imperative to develop new proce...

报告介绍 溶液体系中的微观动力学研究是凝聚态科学中的一个核心问题。我们以理论光谱学为桥梁，将化学统计力学理论计算与各种先进谱学技术结合起 来，针对蛋白质及离子水溶液这类广受关注的溶液体系进行初步探索。 我们拓展了马尔科夫态模型与数值激子演进方程相结合的技术，以对瞬间升温触发肽链微秒以上长时间去折叠过程的红外以及二位红外光谱进行模拟。为了克服这一 工作中存在的计算量过于昂贵以及溶剂模型不能很好描述温度依赖性的问题...

报告介绍 报告摘要：Supplying the world with sustainable energy is one of the most pressing issues in modern society. Dramatically improved control over heat, electricity and solar energy is essential to create a new energy paradigm. Nanomaterials with carefully tailored properties (such as interface, geometry) can be used to manipulate the flow of phonons, electrons and photons, to enable novel energy device...

报告介绍 报告摘要：The combination of rising global energy demands, diminishing fossil fuel stores, and climate change has prompted intense interest in developing alternative carbon-neutral energy technologies. The capture and conversion of solar energy to chemical fuels is a promising strategy to meet this need, and an ideal approach is to drive water splitting to hydrogen and oxygen using solar energy inpu...

报告介绍 生物酶是维系生命自然运转的关键。针对各类酶尤其是过渡金属酶催化反应的研究，是揭示疾病感染、免疫行为、信息感知、生物抗药性、细胞更新与衰老等生命奥秘的有力突破点。报告人运用密度泛函理论方法（DFT）模拟了多系列过渡金属酶的催化反应过程，包括含闭壳层过渡金属的双锌酶，含开壳层过渡金属的含镍酶、VB12-依赖酶等，揭示了催化反应机理，并探讨了催化过程中的范德华力作用（弱相互作用）的重要性。

报告介绍 Abstract：Prof. Manthiram was promoted to the rank of Professor in 2000 and he currently holds the Joe C. Walter, Jr. Chair in Engineering. He is also currently the Director of the Texas Materials Institute and the Materials Science and Engineering Graduate Program. Prof. Manthiram directs a large, productive research group in electrochemical energy technologies with 30 graduate students and postdoc...

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报告介绍 We will report an overview on the self-assembly in water of amphiphilic block copolymers into polymersomes, and their applications in loading and controlled release of both hydrophilic and hydrophobic molecules and biomolecules. We will pay special attention to polysaccharide and polypeptide-based block copolymer vesicles that we have studied these recent years in our group. These newly developed co...

报告介绍 报告摘要：We have been working for several years to develop robust solution-based routes to the synthesis of nanocrystals and nanowires of many different semiconductors and metals. The general concept we pursue is to synthesize nanomaterials with unique size-tunable optical, electronic and optoelectronic properties and then manipulate them like building blocks into devices and structures with the po...

报告介绍 Abstract： In nuclear reactors, neutron or proton irradiation can generate damage as high as a few hundred displacements per atom (dpa) over the years. The primary radiation damage event in metals is displacement of atoms and the consequent formation of Frenkel (vacancy-interstitial) pairs and various aggregates of defects such as interstitial loops, voids, He bubbles and stacking fault tetrahedra. ...

报告介绍 Abstract：The talk focuses on the group research efforts on various nanostructured functional oxide thin films for high temperature superconductors (HTS), solid oxide fuel cells, ferroelectrics, transparent conducting oxides and others. Wires that carry electrical current without resistance are fabricated by coating metal substrates with the HTS YBa2Cu3O7-δ (YBCO). Using nanolayer architecture...

报告介绍 Abstract:Three-dimensional (3D) topological insulators (TIs) represent a new state of quantum matter with a bulk gap generated by the spin-orbit interaction and an odd number of relativistic Dirac fermions on the surface. The unusual surface states of TIs can be the host for many striking quantum phenomena, such as an image magnetic monopole induced by an electric charge and Majorana fermions induce...

报告介绍 Dr Tang is a Senior Lecturer (Associate Professor) in Energy in Chemical Engineering at University College London (UCL) and an Honorary Lecturer in Chemistry at Imperial College London. Dr Tang received his PhD in Physical Chemistry in 2001, and has been awarded a highly competitive Outstanding President’s Prize of Chinese Academy of Sciences. Between 2002-2005, he had been a researcher and Ja...

报告介绍 Abstract:Contact mechanics between elastic solids with random surface roughness is the basis for understanding a huge number of phenomenon in nature and technology. In my presentation I will describe a novel theory for contact between solids with surface roughness on many length scales (typically fractal-like surfaces) which has been found to be remarkable accurate and flexible, and which can be app...