| 研究実績の概要 |
We followed through and completed several collaborations with experimental groups, on magnon nonlinearity and its applications in emerging technologies such as quantum information. In collaboration with Toeno van der Sar group at TU Delft, we investigated interaction of spin waves in a heterostructure of a YIG thin film and a diamond hosting a collection of NV center spins. We showed that the magnon nonlinearity can be used for wideband magnetometry and a coherent control of NV center spins. This work was published in Nat. Commun. 14, 490 (2023).
In a collaboration with Haiming Yu group in Beijing, we thoroughly investigated the interactions between magnons in a heterostructure of a nanowire and a thin film, and demonstrated an interlayer three magnon interaction, which can be used for generation of non-local correlations useful in quantum information applications. This work was published in Phys. Rev. Lett. 130, 046701 (2023). In collaboration with Eiji Saitoh group at Univ. of Tokyo, we showed that three magnon scattering in an YIG magnetic element can be used for persistent coherence of ferromagnetic resonance. This work is currently under review. In another work published as Phys. Rev. Lett. 130, 046703 (2023), in collaboration with Hidekazu Kurebayashi group at UCL (London), we showed that three magnon scattering can be used for controlling magnon polaritons.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
2: おおむね順調に進展している
理由
The progress on the collaborations with experimentalists based on the magnon nonlinearities was beyond the expectations. I was able to provide theoretical support for five different works, with three already published, one under review, and one ready for submission. The publications were all in impactful journals, two PRL and one Nat. Commun.. However, the investment on these collaborations, hindered purely theoretical publications. Nevertheless, the balance has been already regained and in addition to new collaborations with experimentalists, theoretical works on few different topics including theory of in-situ magnon quantum state memory using nonlinearities are nearly prepared for submission.
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