The DOI matches its Crossref record; 33 of the 33 references it cites were found in a registry or an index.
Observation of the exceptional point in cavity magnon-polaritons
Open accessAbstract
Magnon–polaritons are hybrid light–matter quasiparticles originating from the strong coupling between magnons and photons. They have emerged as a potential candidate for implementing quantum transducers and memories. Owing to the dampings of both photons and magnons, the polaritons have limited lifetimes. However, stationary magnon–polariton states can be reached by a dynamical balance between pumping and losses, so the intrinsically nonequilibrium system may be described by a non-Hermitian Hamiltonian. Here we design a tunable cavity quantum electrodynamics system with a small ferromagnetic sphere in a microwave cavity and engineer the dissipations of photons and magnons to create cavity magnon–polaritons which have non-Hermitian spectral degeneracies. By tuning the magnon–photon coupling strength, we observe the polaritonic coherent perfect absorption and demonstrate the phase transition at the exceptional point. Our experiment offers a novel macroscopic quantum platform to explore the non-Hermitian physics of the cavity magnon–polaritons.
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Cites
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Parity–time-symmetric whispering-gallery microcavities
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The physics of exceptional points
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Parity–time symmetry and variable optical isolation in active–passive-coupled microresonators
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Strongly Coupled Magnons and Cavity Microwave Photons
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Dynamically encircling an exceptional point for asymmetric mode switching
Doppler, J., Mailybaev, A. A., Böhm, J., Kuhl, U., Girschik, A., Libisch, F., Milburn, T. J., Rabl, P., Moiseyev, N., & Rotter, S. (2016) · Nature · doi:10.1038/nature18605 · Cited by 1,068
Hybridizing Ferromagnetic Magnons and Microwave Photons in the Quantum Limit
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Cited by
Nonreciprocity and Unidirectional Invisibility in Cavity Magnonics
Wang, Y.-P., Rao, J. W., Yang, Y., Xu, P.-C., Gui, Y. S., Yao, B. M., You, J. Q., & Hu, C.-M. (2019) · Physical Review Letters · doi:10.1103/physrevlett.123.127202 · Cited by 435
Self-citationObservation of parity-time symmetry breaking in a single-spin system
Wu, Y., Liu, W., Geng, J., Song, X., Ye, X., Duan, C.-K., Rong, X., & Du, J. (2019) · Science · doi:10.1126/science.aaw8205 · Cited by 426
Metadata
- Authors
- Zhang, D., Luo, X.-Q., Wang, Y.-P., Li, T.-F., & You, J. Q.
- Venue
- Nature Communications
- Published
- 2017-11-08
- Volume
- 8
- Issue
- 1
- Pages
- 1368-1368
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2766522556
- Cited by
- 401
- References
- 33
- FWCI
- 11.73
- Type
- journal article
- Language
- en
- Open access
- gold
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