WEKO3
アイテム
Time-Dependent Multicomponent Density Functional Theory for Coupled Electron-Positron Dynamics
https://repo.qst.go.jp/records/49431
https://repo.qst.go.jp/records/494315f650ef9-a3b9-4ede-8d3d-bb25512e8cdc
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-01-09 | |||||
| タイトル | ||||||
| タイトル | Time-Dependent Multicomponent Density Functional Theory for Coupled Electron-Positron Dynamics | |||||
| 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_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Suzuki, Yasumitsu
× Suzuki, Yasumitsu× Hagiwara, Satoshi× Watanabe, Kazuyuki× 萩原 聡 |
|||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Electron-positron interactions have been utilized in various fields of science. Here we develop time-dependent multicomponent density functional theory to study the coupled electron-positron dynamics from first principles. We prove that there are coupled time-dependent single-particle equations that can provide the electron and positron density dynamics, and derive the formally exact expression for their effective potentials. Introducing the adiabatic local density approximation to time-dependent electron-positron correlation, we apply the theory to the dynamics of a positronic lithium hydride molecule under a laser field. We demonstrate the significance of the coupling between electronic and positronic motion by revealing the complex positron detachment mechanism and the suppression of electronic resonant excitation by the screening effect of the positron. | |||||
| 書誌情報 |
PHYSICAL REVIEW LETTERS 巻 121, 号 13, p. 133001-1-133001-6, 発行日 2018-09 |
|||||
| 出版者 | ||||||
| 出版者 | The American Physical Society | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1103/PhysRevLett.121.133001 | |||||
