WEKO3
アイテム
量子系におけるコントロールと測定
https://doi.org/10.15102/1394.00001680
https://doi.org/10.15102/1394.000016808dcb99ee-8506-4a4b-9326-2883534f45e4
| 名前 / ファイル | ライセンス | アクション |
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Final_Exam_Abstract (42.9 kB)
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| Item type | 学位論文 / Thesis or Dissertation(1) | |||||||
|---|---|---|---|---|---|---|---|---|
| 公開日 | 2021-01-05 | |||||||
| タイトル | ||||||||
| タイトル | 量子系におけるコントロールと測定 | |||||||
| 言語 | ja | |||||||
| タイトル | ||||||||
| タイトル | Control and measurement of non-classical properties of cold atomic and optical systems | |||||||
| 言語 | en | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||||
| 資源タイプ | doctoral thesis | |||||||
| ID登録 | ||||||||
| ID登録 | 10.15102/1394.00001680 | |||||||
| ID登録タイプ | JaLC | |||||||
| アクセス権 | ||||||||
| アクセス権 | open access | |||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||
| 著者 (英) |
Usui, Ayaka
× Usui, Ayaka
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| 抄録 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | I present the work done during my PhD in the field of quantum gases, metrology, and thermodynamics, which aims at revealing and controlling non-classical correlations and features in various systems. First, I have studied two strongly interacting bosons with synthetic spin-orbit coupling. In this work, I have described the ground state beyond the mean-field regime and explored the existence of non-classical correlations. In a second project, I have investigated the dynamical phase transition in a system of cold atoms trapped in one-dimensional optical lattices. This is the first work to study the dynamical phase transition in a continuous model, and I have revealed the relation between the dynamical phase transition and temporal orthogonality. Third, I consider an impurity coupled to a gas in a two-dimensional lattice. This work has explored the dynamics of the impurity and proposed an approach to probe the local excitation spectrum of the gas at the site coupled to the impurity. Next, I present my contribution to a project on Bayesian estimation with continuous-variable systems. I have examined what is the best probe state for heterodyne or homodyne detection to estimate a single parameter. In the last project, I have explored steady states in quantum thermal machines. As dealing with multi-level and larger numbers of systems quickly becomes intractable, I have mapped them to lower-dimensional systems by utilising the idea of virtual qubits so that one can design autonomous quantum machines beyond a few qubits. | |||||||
| 言語 | en | |||||||
| 口頭試問日 | ||||||||
| 値 | 2020-12-10 | |||||||
| 学位授与年月日 | ||||||||
| 学位授与年月日 | 2020-12-31 | |||||||
| 学位名 | ||||||||
| 学位名 | Doctor of Philosophy | |||||||
| 学位授与番号 | ||||||||
| 学位授与番号 | 甲第67号 | |||||||
| 学位授与機関 | ||||||||
| 学位授与機関識別子Scheme | kakenhi | |||||||
| 学位授与機関識別子 | 38005 | |||||||
| 学位授与機関名 | Okinawa Institute of Science and Technology Graduate University | |||||||
| 著者版フラグ | ||||||||
| 出版タイプ | VoR | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
| 権利 | ||||||||
| 権利情報 | © 2020 The Author. | |||||||
