Collective optonuclear cavity quantum electrodynamics in 229Th nanophotonic resonators Technical Digest Series Mamian, Karen De Haan, Jan Bi, Toby Dubey, Swadheen Kazakov, Georgy A. Beeks, Kjeld Marquardt, Christoph Kraemer, Sandro Pereira, Lino M.C. Del’Haye, Pascal Van Gasse, Kasper Schumm, Thorsten Roques-Carmes, Charles We develop a quantum theory of light-matter interactions in 229Th nanophotonic resonators pumped via the optonuclear quadrupolar effect, predicting detectable photon fluxes with realistic platforms and revealing how collective dynamics shape the future nuclear clock performance. Optica Publishing Group 2026 info:eu-repo/semantics/conferenceObject doc-type:ConferenceObject ConferenceObject http://purl.org/coar/resource_type/c_5794 https://research-explorer.ista.ac.at/record/23197 Mamian K, De Haan J, Bi T, et al. Collective optonuclear cavity quantum electrodynamics in 229Th nanophotonic resonators. In: <i>CLEO Fundamental Science Proceedings</i>. Optica Publishing Group; 2026. doi:<a href="https://doi.org/10.1364/CLEO_FS.2026.FTU1B.4">10.1364/CLEO_FS.2026.FTU1B.4</a> eng info:eu-repo/semantics/altIdentifier/doi/10.1364/CLEO_FS.2026.FTU1B.4 info:eu-repo/semantics/altIdentifier/isbn/9781957171586 info:eu-repo/semantics/closedAccess