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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 Bogoliubov causality condition ： ウィキペディア英語版 Bogoliubov causality condition Bogoliubov causality condition is a causality condition for scattering matrix (''S''-matrix) in axiomatic quantum field theory. The condition was introduced in axiomatic quantum field theory by Nikolay Bogolyubov in 1955. ==Formulation== In axiomatic quantum theory, ''S''-matrix is considered as a functional of a function $g:\; M\backslash to\; ()$ defined on the Minkowski space $M$. This function characterizes the intensity of the interaction in different space-time regions: the value $g(x)=0$ at a point $x$ corresponds to the absence of interaction in $x$, $g(x)=1$ corresponds to the most intense interaction, and values between 0 and 1 correspond to incomplete interaction at $x$. For two points $x,y\backslash in\; M$, the notation $x\backslash le\; y$ means that $x$ causally precedes $y$. Let $S(g)$ be scattering matrix as a functional of $g$. The Bogoliubov causality condition in terms of variational derivatives has the form: :::$\backslash frac\backslash left(\backslash frac\; S^\backslash dagger(g)\backslash right)=0\; \backslash mbox\; x\backslash le\; y.$ 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「Bogoliubov causality condition」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.