Mode-multiplexing deep-strong light-matter coupling
Abstract Dressing electronic quantum states 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 streng...
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2024-02-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-46038-9 |
| _version_ | 1797273890045558784 |
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| author | Joshua Mornhinweg Laura Katharina Diebel Maike Halbhuber Michael Prager Josef Riepl Tobias Inzenhofer Dominique Bougeard Rupert Huber Christoph Lange |
| author_facet | Joshua Mornhinweg Laura Katharina Diebel Maike Halbhuber Michael Prager Josef Riepl Tobias Inzenhofer Dominique Bougeard Rupert Huber Christoph Lange |
| author_sort | Joshua Mornhinweg |
| collection | DOAJ |
| description | Abstract Dressing electronic quantum states 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 $${\varOmega }_{{{{{{\rm{R}}}}}}}/{\omega }_{{{{{{\rm{c}}}}}}}$$ Ω R / ω c , defined as the ratio of the vacuum Rabi frequency and the frequency of light, by resonant interactions. Yet, the finite oscillator strength of a single electronic excitation sets a natural limit to $${\varOmega }_{{{{{{\rm{R}}}}}}}/{\omega }_{{{{{{\rm{c}}}}}}}$$ Ω R / ω c . 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 our metasurface. 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 $${\varOmega }_{{{{{{\rm{R}}}}}}}/{\omega }_{{{{{{\rm{c}}}}}}}=3.19$$ Ω R / ω c = 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. |
| first_indexed | 2024-03-07T14:50:36Z |
| format | Article |
| id | doaj.art-72eb74ab51bc4d27a1b337c6cf113db7 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-07T14:50:36Z |
| publishDate | 2024-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-72eb74ab51bc4d27a1b337c6cf113db72024-03-05T19:42:26ZengNature PortfolioNature Communications2041-17232024-02-011511810.1038/s41467-024-46038-9Mode-multiplexing deep-strong light-matter couplingJoshua Mornhinweg0Laura Katharina Diebel1Maike Halbhuber2Michael Prager3Josef Riepl4Tobias Inzenhofer5Dominique Bougeard6Rupert Huber7Christoph Lange8Department of Physics, University of RegensburgDepartment of Physics, University of RegensburgDepartment of Physics, University of RegensburgDepartment of Physics, University of RegensburgDepartment of Physics, University of RegensburgDepartment of Physics, University of RegensburgDepartment of Physics, University of RegensburgDepartment of Physics, University of RegensburgDepartment of Physics, TU Dortmund UniversityAbstract Dressing electronic quantum states 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 $${\varOmega }_{{{{{{\rm{R}}}}}}}/{\omega }_{{{{{{\rm{c}}}}}}}$$ Ω R / ω c , defined as the ratio of the vacuum Rabi frequency and the frequency of light, by resonant interactions. Yet, the finite oscillator strength of a single electronic excitation sets a natural limit to $${\varOmega }_{{{{{{\rm{R}}}}}}}/{\omega }_{{{{{{\rm{c}}}}}}}$$ Ω R / ω c . 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 our metasurface. 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 $${\varOmega }_{{{{{{\rm{R}}}}}}}/{\omega }_{{{{{{\rm{c}}}}}}}=3.19$$ Ω R / ω c = 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.https://doi.org/10.1038/s41467-024-46038-9 |
| spellingShingle | Joshua Mornhinweg Laura Katharina Diebel Maike Halbhuber Michael Prager Josef Riepl Tobias Inzenhofer Dominique Bougeard Rupert Huber Christoph Lange Mode-multiplexing deep-strong light-matter coupling Nature Communications |
| title | Mode-multiplexing deep-strong light-matter coupling |
| title_full | Mode-multiplexing deep-strong light-matter coupling |
| title_fullStr | Mode-multiplexing deep-strong light-matter coupling |
| title_full_unstemmed | Mode-multiplexing deep-strong light-matter coupling |
| title_short | Mode-multiplexing deep-strong light-matter coupling |
| title_sort | mode multiplexing deep strong light matter coupling |
| url | https://doi.org/10.1038/s41467-024-46038-9 |
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