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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 kinetic term ： ウィキペディア英語版 kinetic term In physics, a kinetic term is the part of the Lagrangian that is bilinear in the fields (this does not include the mass term!) (and for nonlinear sigma models, they are not even bilinear), and usually contains two derivatives with respect to time (or space); in the case of fermions, the kinetic term usually has one derivative only. The equation of motion derived from such a Lagrangian contains differential operators which are generated by the kinetic term. In mechanics, the kinetic term is :$T\; =\; \backslash frac\backslash dot\; x^2\; =\; \backslash frac\backslash left(\; \backslash frac\backslash right)^2\; .$ In quantum field theory, the kinetic terms for real scalar fields, electromagnetic field and Dirac field are :$T\; =\; \backslash frac\backslash partial\_\backslash mu\; \backslash Phi\; \backslash partial^\backslash mu\; \backslash Phi\; +\; \backslash fracF\_F^\; +\; i\; \backslash bar\; \backslash psi\; \backslash gamma^\backslash mu\; \backslash partial\_\backslash mu\; \backslash psi\; .$ 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「kinetic term」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.