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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 Interaction energy ： ウィキペディア英語版 Interaction energy In physics, interaction energy is the contribution to the total energy that is caused by an interaction between the objects being considered. The interaction energy usually depends on the relative position of the objects. For example, $Q\_1\; Q\_2\; /\; (4\; \backslash pi\; \backslash epsilon\_0\; \backslash Delta\; r)$ is the electrostatic interaction energy between two objects with charges $Q\_1$, $Q\_2$. ==Supermolecular interaction energy== A straightforward approach for evaluating the interaction energy is to calculate the difference between the energies of isolated objects and their assembly. In the case of two objects, ''A'' and ''B'', the interaction energy can be written as: $\backslash Delta\; E\_\; =\; E(A,B)\; -\; \backslash left(\; E(A)\; +\; E(B)\; \backslash right)$, where $E(A)$ and $E(B)$ are the energies of the isolated objects (monomers), and $E(A,B)$ the energy of their interacting assembly (dimer). For larger system, consisting of ''N'' objects, this procedure can be generalized to provide a total many-body interaction energy: $\backslash Delta\; E\_\; =\; E(A\_,\; A\_,\; ..,\; A\_)\; -\; \backslash sum\_^\; E(A\_)$. By calculating the energies for monomers, dimers, trimers, etc., in an N-object system, a complete set of two-, three-, and up to N-body interaction energies can be derived. The supermolecular approach has an important disadvantage in that the final interaction energy is usually much smaller than the total energies from which it is calculated, and therefore contains a much larger relative uncertainty. In the case where energies are derived from quantum chemical calculations using finite atom centered basis functions, basis set superposition errors can also contribute some degree of artificial stabilisation. 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「Interaction energy」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.