标题： 扭曲光在磁场中驱动纳米结构中相互作用电子的手性激发 显示英文标题

标题： Twisted light drives chiral excitations of interacting electrons in nanostructures with magnetic field

摘要： 扭曲光（TL），一种携带轨道角动量的特殊光，为驱动量子限制纳米结构中的对称性分辨跃迁提供了强大的工具。 我们研究了一个现实模型，其中TL脉冲在垂直磁场下激发纳米结构中的两个相互作用的电子。 为了在层状系统中包含镜像电荷效应，我们使用了形式为1/r^n的有效电子-电子势。 对于n = 2，系统表现出一个底层的su(1,1)动力学对称性，使得能够解析求解并清晰地解释选择规则、奇偶性变化和角动量分辨的吸收。 我们表明，裸露的库仑1/r相互作用会产生类似的光谱，这表明由扭曲光驱动的激发对精确的相互作用形式具有鲁棒性。 激发光谱揭示了强烈的手性特性：与传统的偶极场不同，TL脉冲可以直接访问由相互作用驱动的跃迁，这些跃迁原本由于对称性而被禁止。 特别是，TL打破了广义的Kohn定理，通过多量子轨道过程暴露内部激发。 更广泛地说，我们的结果确立了TL作为强相互作用量子系统中相关性、对称性和磁光动力学的敏感探针，揭示了标准红外吸收无法观察到的特征。 显示英文摘要

摘要： Twisted light (TL), a special kind of light carrying orbital angular momentum, provides a powerful tool for driving symmetry resolved transitions in quantum confined nanostructures. We study a realistic model where a TL pulse excites two interacting electrons in a nanostructure under a perpendicular magnetic field. To include image charge effects in layered systems, we use an effective electron electron potential of the form 1/r^n. For n = 2, the system exhibits an underlying su(1,1) dynamical symmetry, enabling analytical solutions and a clear interpretation of selection rules, parity changes, and angular momentum resolved absorption. We show that the bare Coulomb 1/r interaction produces similar spectra, indicating that twisted light driven excitations are robust against the precise interaction form. The excitation spectrum reveals strong chiral properties: TL pulses, unlike conventional dipolar fields, directly access interaction-driven transitions otherwise symmetry-forbidden. In particular, TL breaks the generalized Kohn theorem, exposing internal excitations through multi quanta orbital processes. More broadly, our results establish TL as a sensitive probe of correlations, symmetry, and magneto-optical dynamics in strongly interacting quantum systems, uncovering features that remain invisible to standard infrared absorption.