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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Quintom scenario ： ウィキペディア英語版 Quintom scenario Quintom scenario is a hypothetical scenario of dark energy with the equation of state crossing the cosmological constant boundary ($w\; =\; -1$) from above to below, or oppositely. Theoretically, a no-go theorem〔(arXiv:0909.2776v2Quintom Cosmology - theoretical implications and observations )〕 has been proved showing that, to generate this scenario, at least two degrees of freedom are required for dark energy models. If this scenario exists, it may indicate how the universe avoids the dooms of time-like singularities, such as Big Bang, Big Rip, and so on. For example, one application of quintom scenario in 2008 was to a model of inflationary cosmology without Big Bang singularity. One application of quintom in 2007 was in a Big Bounce model of the universe. ==External links== * (Dark Energy Constraints from the Cosmic Age and Supernova by Bo Feng, Xiulian Wang and Xinmin Zhang ) * (Crossing the Phantom Divide by Martin Kunz and Domenico Sapone ) * (A Model Of Inflationary Cosmology Without Singularity by Yi-Fu Cai, Taotao Qiu, Jun-Qing Xia and Xinmin Zhang ) * (Quintom Cosmology: theoretical implications and observations by Yi-Fu Cai, Emmanuel N. Saridakis, Mohammad R. Setare and Jun-Qing Xia ) * 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Quintom scenario」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.