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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 Volume operator ： ウィキペディア英語版 Volume operator A quantum field theory of General Relativity provides operators that measure the geometry of space time. The volume operator $V(R)$ of a region $R$ is defined as the operator that yields the expectation value of a volume measurement of the region $R$, given a state $\backslash psi$ of quantum General Relativity. I.e.$\backslash lang\; \backslash psi,\; V(R)\; \backslash psi\; \backslash rang$ is the expectation value for the volume of $R$. Loop Quantum Gravity, for example, provides volume operators, area operators and length operators for regions, surfaces and path respectively. ==Sources== *Carlo Rovelli and Lee Smolin, ("Discreteness of Area and Volume in Quantum Gravity", Nuclear Physics B 442, 593 (1995) ). *Abhay Ashtekar and Jerzy Lewandowski, (''Quantum Theory of Geometry II: Volume operators'' ) 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「Volume operator」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.