تقرير
Optomagnonics in dispersive media: magnon-photon coupling enhancement at the epsilon-near-zero frequency
| العنوان: | Optomagnonics in dispersive media: magnon-photon coupling enhancement at the epsilon-near-zero frequency |
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| المؤلفون: | Bittencourt, V. A. S. V., Liberal, I., Kusminskiy, S. Viola |
| سنة النشر: | 2021 |
| المجموعة: | Condensed Matter Quantum Physics |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics, Quantum Physics |
| الوصف: | Reaching strong light-matter coupling in solid-state systems has been long pursued for the implementation of scalable quantum devices. Here, we put forward the concept of a platform capable of achieving strong coupling between magnetic excitations (magnons) and optics based in an epsilon-near-zero medium, that's it, a medium in which the permittivity is close to zero. We adopt a phenomenological approach to quantize the electromagnetic field inside a dispersive magnetic medium and obtain a Hamiltonian describing the interaction between photons and magnons and the frequency-dependent coupling. We predict that, in the epsilon-near-zero regime, the single-magnon photon optomagnonic coupling can be comparable to the uniform magnon's frequency for small magnetic volumes. For state-of-the-art illustrative values, this would correspond to achieving the single-magnon strong coupling regime, where the coupling rate is larger than all the decay rates. Finally, we show that the non-linear energy spectrum intrinsic to this coupling regime regime can be probed via the characteristic multiple magnon sidebands in the photon power spectrum. Comment: 6 Pages, 3 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevLett.128.183603 |
| URL الوصول: | http://arxiv.org/abs/2110.02984 |
| رقم الأكسشن: | edsarx.2110.02984 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevLett.128.183603 |
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