000152214 001__ 152214
000152214 005__ 20251017144622.0
000152214 0247_ $$2doi$$a10.1515/nanoph-2024-0528
000152214 0248_ $$2sideral$$a143440
000152214 037__ $$aART-2025-143440
000152214 041__ $$aeng
000152214 100__ $$aMuniain, Unai
000152214 245__ $$aDescription of ultrastrong light–matter interaction through coupled harmonic oscillator models and their connection with cavity-QED Hamiltonians
000152214 260__ $$c2025
000152214 5060_ $$aAccess copy available to the general public$$fUnrestricted
000152214 5203_ $$aClassical coupled harmonic oscillator models are capable of describing the optical and infrared response of nanophotonic systems where a cavity photon couples to dipolar matter excitations. The distinct forms of coupling adopted in these classical models lead to different results in the ultrastrong coupling regime. To clarify the specific classical model required to address particular configurations, we establish a connection between each oscillator model and the equivalent cavity Quantum Electrodynamics description. We show that the proper choice of coupled harmonic oscillator model depends on the presence or absence of the diamagnetic term in the quantum models, linked to whether transverse or longitudinal electromagnetic fields mediate the coupling. This analysis also shows how to exploit the classical oscillator models to extract measurable information of the optical response, as demonstrated in three canonical photonic systems, and to describe the opening of the Reststrahlen band in the bulk dispersion of phononic materials.
000152214 536__ $$9info:eu-repo/grantAgreement/ES/MCIU/PID2020-Q1115221GB-C41$$9info:eu-repo/grantAgreement/ES/MICIU/CEX2023-001286-S
000152214 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttps://creativecommons.org/licenses/by/4.0/deed.es
000152214 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000152214 700__ $$aAizpurua, Javier
000152214 700__ $$aHillenbrand, Rainer
000152214 700__ $$0(orcid)0000-0001-9273-8165$$aMartín-Moreno, Luis
000152214 700__ $$aEsteban, Ruben
000152214 773__ $$g(2025), [22 pp.]$$pNanophotonics$$tNanophotonics$$x2192-8606
000152214 787__ $$tResearch Data supporting: "Description of ultrastrong light-matter interaction through coupled harmonic oscillator models and their connection with cavity-QED Hamiltonians"$$wdigital.csic.es/handle/10261/380579/
000152214 8564_ $$s1794332$$uhttps://zaguan.unizar.es/record/152214/files/texto_completo.pdf$$yVersión publicada
000152214 8564_ $$s2763368$$uhttps://zaguan.unizar.es/record/152214/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000152214 909CO $$ooai:zaguan.unizar.es:152214$$particulos$$pdriver
000152214 951__ $$a2025-10-17-14:22:18
000152214 980__ $$aARTICLE