报告介绍 报告摘要：　　磁和电是物质的两种基本性质，也是现代信息时代的物质基础。近年来，研究者一直在努力探索固体中磁性与电性的耦合和调控。寻找具有磁性与电性共存和耦合的材料体系，一方面有助于人们对凝聚态物理与材料物理的科学认识，另一方面对设计新型量子器件有着重要影响。　　本报告中将简要介绍我们最近的两个理论工作。第一部分是铁电场效应异质结。一般的铁电场效应可以显著地调节与之相连的氧化物的电阻，但对其磁性影响甚...

报告介绍 Abstract: 　　The oxidation of volatile organic compounds (VOCs) is one of the main reasons for the regional high ozone and PM2.5 concentrations in the atmosphere. Peroxy radicals (RO2) are important radical intermediates in the atmospheric oxidation of VOCs. It is usually assumed that the peroxy radicals will react with NOx and HO2/RO2 radicals. However, our recent preliminary studies find that the...

报告介绍 Abstract: 　　Particle formation process via gas-to-particle conversion (nucleation) within complex flow systems is critical for environmental aerosol generations, as well as in many industrial applications. The main concern is the entangled interaction of fluid dynamic and particle nucleation, where the later is highly sensitive to accurately predicting both thermal and chemical transports within t...

报告介绍 Abstract: 　　In this talk, I will briefly discuss the recent progress in engineering topological states in condensed matter systems, including honeycomb lattices and topological insulators. Some of the basic concepts about topological phases will be introduced. As concrete examples, I will mainly focus on several of our findings of various topological phases (quantum anomalous Hall effect, 2D topol...

报告介绍 报告摘要： Ultrashort intense x-ray pulses available from new XFEL and HHG light sources allows to employ ultrafast and non-linear processes in atoms and molecules for probing quantum coherence effects and electron correlations on core-to-valence transitions [1]. The strong x-ray field can sufficiently alter the vibronic dynamics in the system, which is reflected particularly in the significant chan...

报告介绍 报告摘要：　　Low-dimensional magnetic materials have been proposed as building blocks for many intriguing applications, ranging from spintronics to quantum information processing, due to their novel properties which do not present in their bulk counterparts. Many new features of low-dimensional magnetic materials, such as magnetic anisotropy (MA), magneto-optic Kerr effect (MOKE) and quantum anomal...

报告介绍 Abstract:　　Tailoring the properties of semiconductor and magnetic structures has been a driving force of information technology. The goal of combining ferromagnetism with semiconductors into a single material has been pursued by physicists and materials scientists for about five decades. A brief review of the history of the magnetic semiconductors will be given before presenting our recent results...

报告介绍 报告摘要： Quantum Hall liquid is the first definitive example of a state of matter which does not break any symmetry, and exhibits "topological order". In this talk I will give a elementary introduction of this fascinating state of matter including the theoretical frameworks we use to understand it.报告人简介：　　Professor Dung-Hai Lee received his B.S. degree from the National Tsinghua ...

报告介绍 报告摘要： Material formation in nature is precisely controlled in all aspects from crystal nucleation, growth to assembly to deliver superior functions. Specific biomolecule-material interactions have been hypothesized to play important roles in these processes. Proteins, polymers and small molecules have been extensively explored to replicate the degree of control in material formation in vitro an...

报告介绍 报告摘要： Two-dimensional layered materials (2DLMs), such as graphene or molybdenum disulfide, represent an ideal 2D material system for exploring fundamental chemistry and physics at the limit of single atomic thickness, and have the potential to open up entirely new opportunities beyond the reach of existing materials to enable totally technologies. Here I will first give a brief overview of our ...

报告介绍 报告人简介：　　Prof. Kai-Ming Ho is a Distinguished Professor in Liberal Arts and Sciences at Iowa State University and Senior Scientist at the Ames Laboratory. He is a world leader in photonic crystals, and his research interests also include the area of electronic and structural properties of crystals, surfaces, clusters, metallic liquid and glass systems. Prof. Ho is a fellow of the American Phy...

报告介绍

报告介绍 Abstract:　　Strongly correlated materials possess many remarkable properties, such as high-Tc superconductivity in cuprates and colossal magnetoresistance in doped manganites, arising from the complex interplay between spin, charge, orbital and lattice degrees of freedom. Electron liquid crystal (ELC) phases provide unique descriptions to characterize the electronic structures and elucidate th...

报告介绍 报告摘要： Heterogeneous catalysis is critical for the prosperity of human civilization. It provides access to the range of chemicals, materials, and fuels we use. Understanding and controlling catalytic processes are essential for developing improved energy storage and conversion technologies. Towards the long-term vision of precisely controlling active sites, our group has developed methods to coa...

报告介绍 报告摘要： Exploring novel quantum phases is always a central issue in condensed matter physics. In recent years, time-reversal symmetric topological phases (TI) have stimulated intensive interests due to its unique electronic structures and potential application ranging from spintronics to quantum computation. In this talk, I will present our recent works: 1)We analysis the relationship between Bor...

报告介绍 Abstract: 　　We develop an efficient scheme that allows for arbitrary operations on a cavity mode using a strongly dispersive qubit-cavity interaction and time-dependent drives. The scheme can readily be implemented using circuit QED systems. Moreover, the scheme can be extended for quantum error correction to protect information encoded in photonic cat states.