arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2603.28752cond-mat.mes-hallphysics.opticsquant-ph
收藏

拓扑光学手性双折射

Topological Optical Chirality Dichroism

University of Cambridge(剑桥大学);University of Coimbra(科英布拉大学);Dublin Institute for Advanced Studies(都柏林高等研究院);University of Manchester(曼彻斯特大学)

Wojciech J. Jankowski, Giandomenico Palumbo, Robert-Jan Slager

AI总结:

研究手性三维系统对光手性的拓扑双折射,揭示手性拓扑不变量导致整数量化的双折射激发率差异,并提出利用超手性光探测三维材料手性能带拓扑的实验方案。

摘要:

我们报道了手性三维系统对光手性的普遍拓扑双折射。我们证明手性拓扑不变量导致整数量化的双折射激发率差异。此外,我们展示这种拓扑效应更一般地源于将光学手性耦合到更高阶张量 Berry 曲率和量子态的 Dixmier-Douady 不变量,包括 Hopf 指数。最后,我们提出利用超手性光作为探测三维材料手性能带拓扑的实验方案。我们的发现为探测至今未观测到的手性电子能带拓扑提供了光学途径。

英文摘要:

We report on a universal topological dichroism of chiral three-dimensional systems in response to the chirality of light. We show that chiral topological invariants result in integer-quantized dichroic excitation rate differences. Moreover, we demonstrate that such topological effects arise more generally from coupling optical chirality to higher tensor Berry curvatures and Dixmier-Douady invariants of quantum states, including Hopf indices. We finally propose an experimental setup that leverages superchiral light as a smoking-gun probe of chiral band topologies in three-dimensional materials. Our findings establish an optical route for probing to date unobserved chiral electronic band topologies.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑