2017 Fiscal Year Final Research Report
Establishing phase transition dynamics of novel phase ordering phenomena in multi-component superfluids
| Project/Area Number |
26870500
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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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) |
2014-04-01 – 2018-03-31
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| Keywords | 超流動 / ボース・アインシュタイン凝縮 / 自発的対称性の破れ / 秩序化動力学 / 浸透理論 / 量子渦 / ドメイン壁 / 量子流体力学 |
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| Outline of Final Research Achievements |
Novel physical phenomena induced by spontaneous symmetry breaking in multi-component superfluids of binary Bose-Einstein condensates and superfluid 3He are studied theoretically. The research goal is to reveal theoretically the experiment of simulating `brane' annihilation done by Lancaster University. In the process of establishing the theory, a new physical concept, Projected Symmetry Breaking, is proposed. Additionally, in domain-coarsening dynamics with spontaneous breaking of a discrete symmetry, like phase separation of oil and water, the direct evidence of a relation to percolation theory is produced. In the case of phase separation of binary condensates, two length-scale regimes can co-exist; a regime is described by percolation theory and the other is done by quantum theory.
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| Free Research Field |
低温物理
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