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arXiv 0711.0576gr-qchep-th
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等效于爱因斯坦广义相对论的嵌入引力理论的正则表述

Canonical formulation of the embedded theory of gravity equivalent to Einstein's General Relativity

S. A. Paston, V. A. Franke

摘要:

我们研究的方法,其中描述重力的独立变量的时空嵌入到一个平坦的高维空间的功能。我们制定了一个规范的形式主义这样一个理论的形式,这需要施加额外的约束,这是爱因斯坦方程的一部分。结果,我们得到了一个具有八参数规范对称性的理论。这个理论在部分规范固定之后,或者在以在附加规范变换下不变的形式重写度规之后,变得等价于爱因斯坦的广义相对论。我们为这样一个理论写行动。

英文摘要:

We study the approach in which independent variables describing gravity are functions of the space-time embedding into a flat space of higher dimension. We formulate a canonical formalism for such a theory in a form, which requires imposing additional constraints, which are a part of Einstein's equations. As a result, we obtain a theory with an eight-parameter gauge symmetry. This theory becomes equivalent to Einstein's general relativity either after partial gauge fixing or after rewriting the metric in the form that is invariant under the additional gauge transformations. We write the action for such a theory.

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