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论文题目:	Energy budget of cosmological first-order phase transition in FLRWbackground
论文题目英文:
作者:	Cai, Rong-Gen; Wang, Shao-Jiang
论文出处:
刊物名称:	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
年:	2018
卷:	61
期:	8
页:	80411
联系作者:	Wang, SJ (reprint author)
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摘要:	We study the hydrodynamics of bubble expansion in cosmological first-order phase transition in the Friedmann-LemaE dagger A +/- tre- Robertson-Walker (FLRW) background with probe limit. Different from previous studies for fast first-order phase transition in flat background, we find that, for slow first-order phase transition in FLRW background with a given peculiar velocity of the bubble wall, the efficiency factor of energy transfer into bulk motion of thermal fluid is significantly reduced, thus decreasing the previously-thought dominated contribution from sound wave to the stochastic gravitational-wave background.
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