Nonlinear spectroscopy of ultrafast electronic correlations in molecular and crystalline spin systems (A04)

正如本项目所设想的那样，环形过渡金属配合物的光激发态是自下而上方法中理解新兴电子和自旋相关的极好候选者。这种瞬态共轭多电子态携带着物质基本紧急状态的动力学信息，我们将利用中红外到x射线光谱范围内的超快非线性光谱学对其进行研究。项目A4直接链接到项目A1， A2， A3和A7（超快时间尺度），B2, B3, B5， B7和B9（紧急动态状态），以及C7（环形六角形原子陷阱）。

Photoexcited states of ring-shaped transition-metal complexes are superb candidates to understand emergent electronic and spin correlations in a bottom-up approach, as envisaged in this project. Such transient conjugated many-electron states carry dynamical information about fundamental emergent states of matter, which we shall study using ultrafast nonlinear spectroscopy from the mid-infrared to the X-ray spectral range. Project A4 links directly to projects A1, A2, A3 and A7 (ultrafast time scales), to B2, B3, B5, B7 and B9 (emergent dynamical states), and to C7 (ring-shaped hexagonal atom traps).