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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 Postselection ： ウィキペディア英語版 Postselection In probability theory, to postselect is to condition a probability space upon the occurrence of a given event. In symbols, once we postselect for an event ''E'', the probability of some other event ''F'' changes from Pr() to the conditional probability Pr(). For a discrete probability space, Pr() = Pr()/Pr(), and thus we require that Pr() be strictly positive in order for the postselection to be well-defined. See also PostBQP, a complexity class defined with postselection. Using postselection it seems quantum Turing machines are much more powerful: Scott Aaronson proved〔. Preprint available at ()〕 PostBQP is equal to PP. == References == 〔 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「Postselection」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.