| 研究課題/領域番号 |
18K13549
|
|---|
| 研究機関 | 国立研究開発法人理化学研究所 |
|---|
研究代表者 |
LIANG HAOZHAO 国立研究開発法人理化学研究所, 仁科加速器科学研究センター, 専任研究員 (50729225)
|
|---|
| 研究期間 (年度) |
2018-04-01 – 2022-03-31
|
| キーワード | 原子核密度汎関数理論 / 汎関数繰り込み群法 / 逆コーンシャム法 / 非相対論的極限 |
|---|
| 研究実績の概要 |
For the development of the functional renormalization group (FRG) method and the application to the (1+1)-dimensional nuclear systems, we derived the FRG formalism including the effect of the density flow. We further discussed the behavior of the two-point correlation functions and calculated the saturation energy and density with systematic truncations and approximations. The corresponding results were summarized in the master thesis “Development of functional renormalization group and its application in one-dimensional nucleon systems” by Hikaru Sakakibara (U. Tokyo).
For exploring the ab initio density functional theory (DFT), we proposed a novel way to improve energy density functionals in DFT based on the combination of the inverse Kohn-Sham method and the density functional perturbation theory. The results have been published in [J. Phys. B 52 (2019) 245003]. It is one of the first practical uses of the inverse Kohn-Sham method.
For revealing the connections between the relativistic and nonrelativistic nuclear DFTs, we proposed the novel reconstituted similarity-renormalization-group method and the novel reconstituted Foldy-Wouthuysen transformation. The results have been published in [Phys. Rev. C 99 (2019) 054324; 101 (2020) 024304; Chin. Phys. C 43 (2019) 114105].
|
| 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 research is progressing rather smoothly with the supports of RIKEN and several international collaborations.
|
| 今後の研究の推進方策 |
The research will be carried out as plans. In particular, in FY2020, we will finalize the research of the functional renormalization group method to the (1+1)-dimensional nuclear systems, and we will focus on the development of this method to the (3+1)-dimensional nuclear systems and electron gas. Investigations and applications of the relevant studies will also be processed in parallel.
|
| 次年度使用額が生じた理由 |
In FY2019, we bought a new computer with a chapter price and we spent less on traveling.
|
