CAREER: Solutions, Spectrum and Dynamics of Schrodinger Oerators

摘要：项目名称：Alexander KiselevProposal: dms -0129470机构：University of chicago研究将主要关注两个方向。第一个目标是进一步研究和应用有关薛定谔方程、谱和动力学解的行为准则到感兴趣的具体量子系统。特别是，这些应用可能会对某些随机和准周期算子（如斐波那契哈密顿算子）的动力学和谱有新的认识，并提供对量子输运现象的更好的一般理解。第二个目标是利用谐波分析的工具，继续研究一维薛定谔算子的先进WKB方法。WKB方法是量子力学的经典部分，其主要目标是在某些自然假设下找到系统波函数的良好近似值。本项目将致力于开发新的wkb型技术，该技术可用于获取一类薛定谔算子的动力学信息。向更高维度的扩展也将被寻求。薛定谔算子的谱和动力学理论是量子力学的基石。该理论描述了控制量子粒子（如电子、原子和分子）行为的定律。许多关于重要物理过程的基本科学知识（例如，化学反应或各种材料的传导特性）都来自薛定谔算符理论。本项目的重点是发展薛定谔算子的谱理论和动力学理论的新方法，这可能为解决量子力学中一些长期存在的问题提供新的途径。这些问题特别关注含杂质材料和准晶体材料的电导特性，并直接应用于现代工程器件、波导和晶体管等。该项目还将包括为生物和化学专业的本科生开发现代数学方法课程。考虑到数学和这些科学之间快速发展的接口，需要将一套新的思想和材料纳入这些服务课程。此外，研究生课程的主要目标将是帮助刚开始的研究生过渡到独立研究。

ABSTRACTPI: Alexander KiselevProposal: DMS-0129470Institution: University of ChicagoThe research will focus mainly on two directions.The first objective is to further study and apply to concretequantum systems of interest the criteria relating behaviorof solutions of Schroedinger equation, spectrum and dynamics.In particular, the applications may shed new light on the dynamics and spectrum of certain classes of random and quasiperiodic operators, such as Fibonacci Hamiltonian, as well as provide a better general understanding of the quantum transport phenomena. The second objective is to continue the study of advanced WKB methods for one-dimensional Schroedinger operators, using the tools of harmonic analysis. WKB methods are a classical part of quantum mechanics, and their main goal is to find a good approximation for the wave function of the system under certain natural assumptions. This project will pursue the development of new WKB-type techniques, which can be applied to obtain information about dynamics of a class of Schroedinger operators. Extensions to higher dimensions will also be sought. The spectral and dynamical theory of Schroedinger operators is the cornerstone of Quantum Mechanics. This theory describes the laws which govern behavior of the quantum particles, such as electrons, atoms and molecules. Much of the fundamentalscientific knowledge about many important physical processes (such as, for example, chemical reactions or conduction properties of various materials) comes from the theory of Schroedinger operators. This project focuses on the development of new methods in spectral and dynamical theory of Schroedinger operators which may allow a new approach to some long-standing problems in Quantum Mechanics. These problems concern, in particular, the conductance properties of materials with impurities and of quasicrystals, and have direct applications to modern engineering devices, wave guides and transistors to name two. The project will also involve development of a modernmathematical methods curriculum for undergraduate students majoring in biology and chemistry. Given rapidly evolving interface between mathematics and these sciences, a new set of ideas and material needs to be incorporated into such service courses. In addition, graduate courses will be developed with the main objective to help beginning graduatestudents make a transition to independent research.