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KAKEN_16K17703seika.pdf
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Download
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:95.9 KB
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:Oct 31, 2019 |
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Total downloads since Oct 31, 2019 : 511
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| Title |
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カイラル輸送現象による超新星爆発・初期宇宙の新物理
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カイラル ユソウ ゲンショウ ニ ヨル チョウシンセイ バクハツ・ショキ ウチュウ ノ シンブツリ
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Kairaru yusō genshō ni yoru chōshinsei bakuhatsu shoki uchū no shinbutsuri
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New physics of supernovae and the early universe due to chiral transport phenomena
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山本, 直希
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ヤマモト, ナオキ
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Yamamoto, Naoki
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慶應義塾大学・理工学部 (矢上)・准教授
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Research team head
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科研費研究者番号 : 80735358
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2019
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科学研究費補助金研究成果報告書
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2018
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| Abstract |
素粒子のカイラリティを考慮した輸送理論を、超新星コアなどで現れる相対論的なカイラル物質に応用した。その結果、通常の物質では存在しないカイラル輸送現象によって、衝撃波の進行方向が素粒子のカイラリティによって決まるカイラル衝撃波や、エネルギーが小さなスケールから大きなスケールへと転化される乱流のカスケード現象 (逆カスケード) という新しい物理現象が現れることを明らかにした。また、カイラル輸送理論を光子 (電磁波) やグラビトン (重力波) に拡張し、特に、重力場中で右巻きと左巻きの重力波が分離する現象 (重力波のスピンホール効果) を見出した。
We applied the transport theory taking into account the chirality of elementary particles to relativistic chiral matter that appears, e.g., at the core of supernovae. As a result, we found new physical phenomena due to the chiral transport phenomena that are absent in usual matter: one is the chiral shock wave, whose propagation direction is determined by the chirality of elementary particles. The other is the inverse cascading turbulence, where the energy is transferred from small to larger scales. We also extended the chiral transport theory to photons (electromagnetic waves) and gravitons (gravitational waves). In particular, we found the splitting of the trajectories of right- and left-handed gravitational waves in a gravitational field (spin Hall effect of gravitational waves).
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研究種目 : 若手研究(B)
研究期間 : 2016～2018
課題番号 : 16K17703
研究分野 : 原子核理論
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