Exciton Binding Energies in 2D Materials: Insights from Braneworld Physics

2025/03/20 by Honet, Antoine, Sarrazin, Michaël
#FOS: Physical sciences #High Energy Physics - Theory (hep-th) #Mesoscale and Nanoscale Physics (cond-mat.mes-hall)

paper · doi:10.48550/arxiv.2503.16174

Abstract

In the present work, we introduce a new interpretation of exciton binding energies in two-dimensional (2D) materials using concepts from brane physics. We adapt the Dvali-Gabadadze-Porrati-Shifman mechanism to a (2+1)-dimensional brane in a (3+1)-D spacetime, deriving an effective electromagnetic potential on the brane. Using this potential, we develop a hydrogenic model for exciton binding energies in 2D materials, applying it to s-type excitons and comparing theoretical predictions with experimental results on WS₂ monolayers. This interdisciplinary approach bridges high-energy and condensed matter physics, offering a new didactic representation of excitons in low-dimensional systems.

Related

• Machine Learning-Driven Insights into Excitonic Effects in 2D Materials
• Interface Dark Excitons at Sharp Lateral Two-Dimensional Heterostructures
• Colloquium : Excitons in atomically thin transition metal dichalcogenides
• Fractional Dimensional Approach to Dielectric Tuning Effects on Excitonic Parameters in 2D semiconductor materials
• Two-dimensional bound excitons in real space and Landau quantization space: A comparative study