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場所:Zoomにて遠隔講演

須藤→横山→吉田→茂山(→Cannon)→仏坂→大栗→樫山→仏坂→西澤→鎌田→須田→金川→上野→Fong→藤澤→山田→Hartwig→新納→西野→大木(→Hynbae→松本)→川名→塚田→中川→Omand→He→林(利)→森脇→津名→武井→羽柴→Wang→大田→垂水→三谷→筒井→林(拓)→粂→Lu→Chan→内田→渡慶次→Kristiano→栗山→鹿内→Zhong

【スキップ中の人々(2020年5月現在)】
須田、上野、Fong

宇宙物理学セミナーアーカイブ


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2021/4/22 (木)

UTAPwiki/セミナー/宇宙物理学セミナー

Speaker:Kohei Fujikura

Title:
Cosmological phase transitions in physics beyond the Standard Model of particle physics

Abstract:
Since the very early universe is filled with thermal plasma, the thermal effect plays an important role. When the temperature of the universe is sufficiently higher than a certain scale of a symmetry breaking, a broken symmetry is restored. As the temperature decreases due to the cosmic expansion, cosmological phase transitions associated with rearrangement of the ground state take place. If cosmological phase transitions are of the first order, they proceed via nucleations of bubbles. They expand and eventually coalesce with each other until they fill the universe. During this process, stochastic gravitational wave backgrounds are generated by bubble collisions, sound waves and turbulence of thermal plasma. In this seminar, I will mainly discuss the dynamics of cosmological phase transitions as well as the production of stochastic gravitational wave backgrounds realized in theories beyond the Standard Model of particle physics.



添付ファイル: fileKK_ChiralKineticTheory_1.pdf 66件 [詳細]

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Last-modified: 2020-06-25 (木) 14:56:54 (298d)