I am pleased to announce that my paper “Gauge-invariant optical selection rules for excitons” has been published in Elsevier’s Physica B: https://doi.org/10.1016/j.physb.2024.416402
This paper is currently pay-walled, but is available on arXiv here.
This work is a second application of my previous work on the novel interband topological index for 2D systems.
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