著者 |
Andrey, Baydin
Kenji, Hayashida
en |
Kenji, Hayashida
Department of Electrical and Computer Engineering, Rice University
Division of Applied Physics, Graduate School of Engineering, Hokkaido University
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Takuma, Makihara
en |
Takuma, Makihara
Department of Physics and Astronomy, Rice University
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Fuyang Tay
ORCID
0000-0003-0264-5104
en |
Fuyang Tay
Department of Electrical and Computer Engineering, Rice University
Applied Physics Graduate Program, Smalley-Curl Institute, Rice University
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Xiaoxuan, Ma
ORCID
0000-0002-4000-5733
en |
Xiaoxuan, Ma
Department of Physics, International Center of Quantum and Molecular Structures and Materials Genome Institute, Shanghai University
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Wei, Ren
en |
Wei, Ren
Department of Physics, International Center of Quantum and Molecular Structures and Materials Genome Institute, Shanghai University
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Guohong Ma
en |
Guohong Ma
Department of Physics, International Center of Quantum and Molecular Structures and Materials Genome Institute, Shanghai University
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G., Timothy, Noe, II
en |
G., Timothy, Noe, II
Department of Electrical and Computer Engineering, Rice University
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Ikufumi Katayama
en |
Ikufumi Katayama
Department of Physics, Graduate School of Engineering Science, Yokohama National University
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Jun, Takeda
Hiroyuki, Nojiri
en |
Hiroyuki, Nojiri
Institute for Materials Research, Tohoku University
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Shixun, Cao
ORCID
0000-0002-3915-2621
en |
Shixun, Cao
Department of Physics, International Center of Quantum and Molecular Structures and Materials Genome Institute, Shanghai University
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Motoaki, Bamba
en |
Motoaki, Bamba
The Hakubi Center for Advanced Research, Kyoto University
Department of Physics I, Kyoto University
PRESTO, Japan Science and Technology Agency
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Junichiro, Kono
en |
Junichiro, Kono
Department of Electrical and Computer Engineering, Rice University
Smalley-Curl Institute, Rice University
Department of Physics and Astronomy, Rice University
Department of Materials Science and NanoEngineering, Rice University
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内容記述 |
Depending on the relative rates of coupling and dissipation, a light-matter coupled system is either in the weak- or strong-coupling regime. Here, we present a unique system where the coupling rate continuously increases with an externally applied magnetic field while the dissipation rate remains constant, allowing us to monitor a weak-to-strong coupling transition as a function of magnetic field. We observed a Rabi splitting of a terahertz magnon mode in yttrium orthoferrite above a threshold magnetic field of ∼14 T. Based on a microscopic theoretical model, we show that with increasing magnetic field the magnons transition into magnon polaritons through an exceptional point, which will open up new opportunities for in situ control of non-Hermitian systems. |