Authors: | Mornhinweg, Joshua Diebel, Laura Katharina Halbhuber, Maike Prager, Michael Riepl, Josef Inzenhofer, Tobias Bougeard, Dominique Huber, Rupert Lange, Christoph |
Title: | Mode-multiplexing deep-strong light-matter coupling |
Language (ISO): | en |
Abstract: | Dressing electronic quantumstates with virtual photons creates exotic effects ranging from vacuum-field modified transport to polaritonic chemistry, and squeezing or entanglement of modes. The established paradigm of cavity quantum electrodynamics maximizes the light-matter coupling strength ΩR=ωc, defined as the ratio of the vacuumRabi frequency and the frequency of light, by resonant interactions. Yet, the finite oscillator strength of a single electronic excitation sets a natural limit to ΩR=ωc. Here, we enter a regime of record-strong light-matter interaction which exploits the cooperative dipole moments of multiple, highly non-resonant magnetoplasmon modes tailored by ourmetasurface. This creates an ultrabroadband spectrum of 20 polaritons spanning 6 optical octaves, calculated vacuum ground state populations exceeding 1 virtual excitation quantum, and coupling strengths equivalent to ΩR=ωc =3:19. The extreme interaction drives strongly subcycle energy exchange between multiple bosonic vacuum modes akin to high-order nonlinearities, and entangles previously orthogonal electronic excitations solely via vacuum fluctuations. |
URI: | http://hdl.handle.net/2003/42642 http://dx.doi.org/10.17877/DE290R-24479 |
Issue Date: | 2024-02-28 |
Rights link: | https://creativecommons.org/licenses/by/4.0/ |
Appears in Collections: | Fakultät für Physik |
Files in This Item:
File | Description | Size | Format | |
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s41467-024-46038-9.pdf | DNB | 5.72 MB | Adobe PDF | View/Open |
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