翻訳と辞書 Words near each other ・ Self-funded health care ・ Self-governance ・ Self-governance of Singapore ・ Self-governing colony ・ Self-Government Army ・ Self-Government Guiding Board ・ Self-gravitation ・ Self-guided tour ・ Self-handicapping ・ Self-harm ・ Self-hating Jew ・ Self-assessment ・ Self-assessment (disambiguation) ・ Self-authenticating document ・ Self-authorship ・ Self-averaging ・ Self-avoiding walk ・ Self-awareness ・ Self-balancing binary search tree ・ Self-balancing two-wheeled board ・ Self-balancing unicycle ・ Self-belay ・ Self-bondage ・ Self-brand ・ Self-build ・ Self-cannibalism ・ Self-care deficit nursing theory ・ Self-categorization theory ・ Self-censorship ・ Self-Certification (New York City Department of Buildings) Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Self-averaging ： ウィキペディア英語版 Self-averaging A self-averaging physical property of a disordered system is one that can be described by averaging over a sufficiently large sample. The concept was introduced by Ilya Mikhailovich Lifshitz. == Definition == Frequently in physics one comes across situations where quenched randomness plays an important role. Any physical property ''X'' of such a system, would require an averaging over all disorder realisations. The system can be completely described by the average () where () denotes averaging over realisations (“averaging over samples”) provided the relative variance ''R''''X'' = ''V''''X'' / ()2 → 0 as ''N''→∞, where ''V''''X'' = () − ()2 and ''N'' denotes the size of the realisation. In such a scenario a single large system is sufficient to represent the whole ensemble. Such quantities are called self-averaging. Away from criticality, when the larger lattice is built from smaller blocks, then due to the additivity property of an extensive quantity, the central limit theorem guarantees that ''R''''X'' ~ ''N''−1 thereby ensuring self-averaging. On the other hand, at the critical point, the question whether $X$ is self-averaging or not becomes nontrivial, due to long range correlations. 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「Self-averaging」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.