14d ago
Full Minimal Coupling GW-Bethe-Salpeter-Equation Framework for Circular Dichroism in Solids: Applications to Chiral 2D Perovskites
Xian Xu · Diana Y. Qiu
Abstract
Author(s): Xian Xu and Diana Y. Qiu<br/><p>Circular dichroism (CD) and other chiroptical responses are key probes of both chirality and momentum-space geometry in solids, but first-principles calculations are still challenging in periodic systems with strong exciton effects. Here, we develop a gauge-invariant first-principles framework for C…</p><br/>[Phys. Rev. Lett. 137, 096901] Published Fri Aug 28, 2026
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