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1. Probing exciton/exciton interactions with entangled photons: Theory

   https://doi.org/10.1063/1.5139197  

   Bittner, Eric R.; Li, Hao; Piryatinski, Andrei; Srimath Kandada, Ajay Ram; Silva, Carlos (February 2020, The Journal of Chemical Physics)
2. Computation of exciton binding energies in exciton condensation

   https://doi.org/10.1103/PhysRevB.110.035110  

   Schouten, Anna_O; Sager-Smith, LeeAnn_M; Mazziotti, David_A (July 2024, Physical Review B)
3. Magnon-mediated exciton–exciton interaction in a van der Waals antiferromagnet

   https://doi.org/10.1038/s41563-025-02183-0  

   Datta, Biswajit; Adak, Pratap Chandra; Yu, Sichao; Valiyaparambil_Dharmapalan, Agneya; Hall, Siedah J; Vakulenko, Anton; Komissarenko, Filipp; Kurganov, Egor; Quan, Jiamin; Wang, Wei; et al (March 2025, Nature Materials)
4. Exciton Fine Structure in Wurtzite Nanorods: Is the Exciton Ground State Always Dark?

   https://doi.org/10.1021/acs.nanolett.4c06066  

   Goupalov, Serguei V (March 2025, Nano Letters)

   Colloidal semiconductor nanorods have demonstrated potential as bright, stable, and polarized light sources. Emission of light in these and other nanocrystals proceeds through recombination of confined electron−hole pairs or excitons with tunable size-dependent resonant frequencies. Usually, their brightness is reduced by the “dark exciton”a nonemissive state into which electron−hole pairs relax before recombining radiatively. Here we analyze the fine structure of exciton states in wurtzite CdSe nanorods and demonstrate that, for cylindrical nanorods of radii less than a critical value of R ∼ 30 Å and aspect ratios larger than ∼5, the exciton ground state is the bright emissive state polarized parallel to the axis of the nanorod. 

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5. Direct Evidence of Exciton–Exciton Annihilation in Single-Crystalline Organic Metal Halide Nanotube Assemblies

   https://doi.org/10.1021/acs.jpclett.8b00761  

   Ma, Ying-Zhong; Lin, Haoran; Du, Mao-Hua; Doughty, Benjamin; Ma, Biwu (April 2018, The Journal of Physical Chemistry Letters)