报告介绍 报告摘要：　　In recent years, the interest in studying quantum-dot nuclear spin systems and their coupling to confined electron spins has been further fueled by its importance for possible quantum information processing applications. The fascinating nonlinear (quantum) dynamics of the coupled electron-nuclear spin system is universal in quantum dot optics and transport. In the first part of this ta...

报告介绍 报告摘要： A powerful approach for investigating properties of matter is light scattering. In this talk, I will discuss how light scattering is used to probe collective modes of electrons in two distinct systems. The first example focuses on light scattering from collective electron oscillations in metals called plasmons. We have recently proposed and demonstrated a novel three-dimensional orientati...

报告介绍 报告摘要：　　This talk focuses on different numerical methods for simulation of acoustic wave propagation in the areas of architectural acoustics and biomedical ultrasound. For architectural acoustics, the sound field modeling in long spaces is formulated using 1-D transport equations. Experiments obtained from a long room scale model are used to verify the transport equation models. In addition to...

报告介绍 报告摘要：　　In this talk, we discuss results from some recent theoretical studies on the novel electronic and optical properties of single-molecule junctions, graphene nanostructures, and surface states of topological insulators.  Owing to their reduced dimensionality and unique electronic structure, these systems present opportunities for study of unusual manifestation of concepts/phenomena ...

报告介绍 报告摘要： The potential-energy-surface crossings between different electronic state widely exist in photophysics, photochemisty and photobiology. At the crossing regions, the strong nonadiabatic couplings induces the ultrafast nonadiabatic transitions that play essential roles in many important photoinduced reactions. The simulation of such nonadiabatic dynamics represents a great challenging ...

报告介绍 报告摘要：　　拓扑绝缘体内部为绝缘体但边缘有导电态。这些边缘电子态具有拓扑保护、自旋偏振等特性, 在自旋电子学、量子输运等领域有着诱人的应用前景。当前理论计算和实验证实的拓扑绝缘体基本上都为化合物(如Bi2Se3、Bi2Te3)或合金(如Bi1-xSbx)材料。实验表明这些材料内部的杂质和缺陷态往往在输运过程中占主导地位, 严重限制了拓扑电子态奇异性能的发挥。单元素拓扑绝缘体有可能弥补化合物/合金材料的这些不足。借助量子受限效...

报告介绍 报告摘要：    In 1929, at the dawn of quantum mechanics, Paul A. M. Dirac stated that the physical laws for a large part of physics and the whole of chemistry are completely known. The challenge is to develop practical methods for explaining the features of complex atomic systems.   In this talk, we present a brief overview of some current theoretical and computational ...

报告介绍 报告摘要： Understanding cellular and organism functions requires studying the spatially resolved dynamics of protein networks. Föster Resonant Energy Transfer (FRET) imaging has long been established as the best method for detecting protein interactions and signaling events in living systems. FRET imaging of complex protein interactions requires an imaging method that can simultaneously detect...

报告介绍 报告摘要： 　　5d based iridates have recently attracted great attention due to the large spin-orbit coupling (SOC). It is now recognized that the SOC that competes with other relevant energies, particularly the on-site Coulomb interaction U, and have driven novel electronic and magnetic phases. Combining single crystal neutron and x-ray diffractions, we have investigated the magnetic and crystal st...

报告介绍 报告摘要：　　When establishing bio­lms, many bacterial species are able to move across surfaces in multicellular groups, a process known as swarming. Flagellated bacteria swarm within a thin layer of ‑uid. This micro‑uidic environment is critical to the physiology of swarming cells. We aimed to understand the interaction between swarming cells and the ‑uid layer. Using micron-...

报告介绍 报告摘要：　　Efficient injection of spin-polarized electrons from a ferromagnetic (FM) source into a semiconducting heterostructure is a prerequisite for the realization of semiconductor spintronic devices. However, due to the large conductivity mismatch between FM metals and semiconductors, direct deposition of the FM metal on the semiconductor surface will result in very poor spin injection effic...

报告介绍 报告摘要：　　In this talk I will review experimental and theoretical progress on charge and spin-based quantum computing schemes in semiconductor quantum dots. I will focus primarily on single spin and singlet triplet qubits, and discuss initialization, manipulaiton and readout of individual qubits, as well as entanglement of neighbouring qubits. I will also discuss known decoherence and dephasing ...

报告介绍 报告人简介：　　马达博士美国马里兰大学(University of Maryland, College Park)获得博士学位。在美国北卡罗莱纳大学(University of North Carolina, Chapel Hill)进行博士后研究。研究工作涉及到超分子化学和纳米医药，致力于利用主客体化学和基于高分子的纳米粒子进行药物增溶和药物传递。迄今为止，已在包括一作Nature Chemistry, JACS 和Angewandte Chemie各一篇在内的9篇论文。英国皇家学会新闻月刊RSC Chemistry World还专门...

报告介绍 报告摘要： 　　We study 2D electronic systems whose Fermi surfaces have type-II van Hove saddle points, defined as saddle points residing at time-reversal-noninvariant momenta in Brillouin zone. We propose that triplet pairing is generically favored in such 2D systems with weak repulsive interactions. This is argued quite generally from a renormalization group treatment of these systems. Such triple...

报告介绍 报告摘要　　The Centre for Molecular and Materials Science (CMMS) at TRIUMF provides intense beams of spin-polarized muons and radioactive ions for Canadian and international researchers to probe materials at the molecular level. Material properties are determined using a series of magnetic resonance techniques known as μSR (muon spin rotation, relaxation and resonance) and βNMR (beta-­d...

报告介绍 报告人介绍：　　2007年中国科学院化学研究所分子纳米结构与纳米技术实验室获理学博士学位。2007年10月到2009年4月，德国德累斯顿莱布尼茨固体与材料研究所 (Leibniz Institute for Solid State and Materials Research Dresden)，博士后，合作导师 Lothar Dunsch 教授。2009年9月2010年8月，美国克莱门森大学（Clemson University）化学系， 2010年9月至2012年4月美国德州大学艾尔帕索分校( University of Texas at El Paso) 化学系...