| 研究課題/領域番号 |
18K03466
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| 研究種目 |
基盤研究(C)
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| 配分区分 | 基金 |
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| 応募区分 | 一般 |
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| 審査区分 |
小区分13010:数理物理および物性基礎関連
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| 研究機関 | 大阪公立大学 (2022-2023)
大阪府立大学 (2018-2021) |
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研究代表者 |
ガーモン サバンナスターリング 大阪公立大学, 大学院理学研究科, 准教授 (30733860)
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| 研究期間 (年度) |
2018-04-01 – 2024-03-31
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| 研究課題ステータス |
完了 (2023年度)
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| 配分額 *注記 |
4,420千円 (直接経費: 3,400千円、間接経費: 1,020千円)
2020年度: 1,170千円 (直接経費: 900千円、間接経費: 270千円)
2019年度: 1,560千円 (直接経費: 1,200千円、間接経費: 360千円)
2018年度: 1,690千円 (直接経費: 1,300千円、間接経費: 390千円)
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| キーワード | optical vortex / waveguide / non-Markovian decay / dynamical control / radiation damping / exceptional point / bound state in continuum / continuum threshold / cyclotron / PT-symmetry / exceptional manifold / orbital angular momentum / cyclotron motion / cut-off frequency |
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| 研究実績の概要 |
In previous years, I have published four works that explore various protocols and ideas for quantum dynamical control in a model-independent context. This included one work [1] particularly focused on the dynamics when the characteristic frequency of a quantum emitter inside a waveguide matches the cutoff frequency inside of that waveguide, which is a universal result. A key factor influencing the dynamics in this case is an exceptional point (EP) appearing directly at the cutoff.
In this year, I have extended this work to the specific case of the classical radiation damping of a charged particle undergoing cyclotron motion inside a rectangular waveguide [2]. Note that one of the main results of our paper Ref. [2] is to show that the quantum and classical cases can be treated almost analogously. The final work on the production of the optical vortex in a cylindrical waveguide will be published in the near future. And a separate work on the general problem of radiation damping in generic classical systems will also be published in the future.
[1] Phys. Rev. Research 3, 033029 (2021)
[2] PTEP 2024, 033A02 (2024)
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