Coordination Funds

协调基金

• 批准号: 281454775
• 负责人: Professor Dr. Manfred Lein
• 金额: --
• 依托单位: Institut für Theoretische Physik
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/281454775?language=en
• 关键词: Coordination; Funds

In this Priority Programme, the dynamics of strongly perturbed quantum systems is to be investigated in the nonrelativistic regime with tailored radiation fields on the femtosecond and attosecond time scale. By combining experimental and theoretical expertise and bringing together the fields of optics, quantum dynamics and chemistry, the programme aims to achieve milestones such as the control and observation of subfemtosecond charge migration or the laser-based recognition and manipulation of chiral molecules. The main focus lies on gas-phase systems, in order to watch microscopic phenomena with minimal disturbance by their environment.On the atomic physics side of this programme, fundamental issues are the interplay between multielectron interactions and light-induced dynamics as well as the boundary between classical and quantum physics. The attosecond temporal structure of laser-induced ionization may be analysed with a range of approaches going beyond existing attoclock and two-colour high-harmonic spectroscopy methods and extending these methods to multielectron dynamics. The electron spin in the strong-field regime, in particular the generation of spin-polarized electrons from laser ionization is a possible subject of study.The physics of molecular systems in intense few-cycle, multicolour and polarization controlled light pulses is a mostly unexplored territory. One aim is to investigate the launch and observation of ultrafast charge migration ¿ an electronic effect occurring faster than nuclear motion. Electron wave-packet dynamics can be controlled with tailored light, for example by exploiting the wave-length dependence of light-molecule interactions to suppress or enhance multiorbital dynamics or to reveal the low-energy structure in photoelectron spectra from mid-infrared irradiation. Laser-induced orientation of molecules may be established and used for applications.In the realm of chemistry, tailored fields hold new opportunities for controlling chemical dynamcs by nonresonant and resonant dynamic Stark shifts, tracing electron dynamics with attosecond precision and for the recognition of the absolute configuration of chiral molecules. Via high-harmonic spectroscopy of molecules with suitably chosen fields, it may be possible to achieve ultrafast imaging of structure and dynamics on the sub-atomic length scale.The application of strong tailored fields to solid-state systems and clusters in a quantum mechanical, i.e. non-plasma, regime holds many open questions. Strong-field processes in unconventional media such as exploding droplets doped with nanoparticles and in laser-induced filaments imply new perspectives such as alternative attosecond pulse sources and high-harmonic generation in inhomogeneous near fields.Proposals for this Priority Programme should take the control of microscopic processes with light to a new level, both in terms of temporal and spatial resolution as well as regarding the investigated systems.

在此优先级计划中，应在非同性主义方案中研究强烈扰动的量子系统的动力学，并在飞秒和attsecond Time量表上量身定制辐射场。通过将实验和理论专业知识结合在一起，并将光学，量子动力学和化学的领域融合在一起，该程序旨在实现里程碑，例如控制和观察亚段电荷迁移或基于激光的识别和对手性分子的操纵。主要重点在于气相系统，以便在其环境中观察微观现象。可以通过一系列方法分析激光诱导的电离的确定性临时结构，该方法范围远远超出了现有的toclock和两色高谐波光谱法，并将这些方法扩展到多电极动力学。强场状态中的电子自旋，尤其是激光电离的自旋偏振电子的产生是一个可能的研究主题。强烈的几个周期，多彩色和极化控制的光脉冲中分子系统的物理学是一个大多数出乎意料的领域。一个目的是调查超快电荷迁移的发射和观察 - 比核运动快的电子效应。电子波背包动力学可以通过量身定制的光控制，例如通过利用光 - 分子相互作用的波长依赖性来抑制或增强多必应力动力学或揭示来自中红外辐照的光电谱中低能的结构。在化学领域，可以建立并使用激光诱导的分子方向。在化学领域，通过非谐振和谐振动态鲜明的变化，量身定制的田地可控制化学动力学，以actosecond精度跟踪电子动力学，并识别chiral分子的绝对构型。通过具有适当选择的磁场的分子的高谐波光谱，可以在亚原子长度尺度上实现结构和动力学的超快成像。在量子机械（即非流传学）中，将强量定制的田地应用于固态系统和簇中，有许多空旷的问题。在非常规媒体中的强场过程，例如爆炸掺杂纳米颗粒的滴滴以及激光引起的细丝中的诸如替代性脉冲源的新观点，例如替代性脉搏源和高谐波产生，在域名附近的无偶然性均应进行此类优先级别的范围，并均应与新的范围进行微观的处理，并以新的方式处理，并在各个方面均与新的范围进行详细的处理。研究系统。