2019 Fiscal Year Final Research Report
Phase ordering percolation and dynamic statistical law in multi-component superfluids
| Project/Area Number |
17K05549
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Condensed matter physics II
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| Research Institution | Osaka City University |
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Principal Investigator |
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| Project Period (FY) |
2017-04-01 – 2020-03-31
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| Keywords | 物理学 / 物性物理学 / 低温物理学 / 超流動 / 自発的対称性の破れ / パーコレーション / 超低温・量子凝縮系 |
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| Outline of Final Research Achievements |
It is expected that non-equilibrium dynamics due to spontaneous symmetry breaking (SSB) induced by rapid quench can be understood as a universal physical phenomena independent on length scales. This research field has long history longer than 40 years but the details has not been revealed except for simple cases. This research project is based on theoretical consideration and numerical computation and has contributed to new understanding on non-equilibrium dynamics on SSB in superfluid systems, which is said to be the matter that realize the most complicated SSB. The project progress toward a higher plane than the original plan with the aid of international collaborations.
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| Free Research Field |
数物系科学
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| Academic Significance and Societal Importance of the Research Achievements |
自発的対称性の破れ（SSB）は，リニアモーターカーなどの最先端技術に応用されている超伝導体や，宇宙初期に起こったとされる相転移の理解に至るまで，物理学の各分野で議論される長さスケールの全く異なる物理現象を結びつける普遍的な物理概念である．そのため，SSBに関する物理現象を新たに解明することは，科学技術の基礎をなす物理学分野全体の発展に結びつく．本研究ではSSBの時間発展について新たな事実を科学的に示すことで，このような発展に貢献している．
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