CANONICAL FORMULATIONS OF FULL NONLINEAR TOPOLOGICALLY MASSIVE GRAVITY

被引:48
|
作者
DESER, S
XIANG, X
机构
[1] Department of Physics, Brandeis University, Waltham
基金
美国国家科学基金会;
关键词
D O I
10.1016/0370-2693(91)91704-Y
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
First-order forms of the complete nonlinear Einstein plus Chern - Simons third-derivative-order action are exhibited in both metric and dreibein forms. The "hamiltonians" are combinations of diffeomorphism and tangent space rotation generators as expected of generally covariant systems: the pure Chern - Simons hamiltonian has an additional, conformal transformation, term. These constraints reduce the apparent number of degrees of freedom to 1 and 0 respectively. The constraint algebras close, as required by this counting without second-class constraints. The nature of the noninvariant terms in the Chern - Simons lagrangian density is discussed. For comparison, the linearized limit and the corresponding nonabelian vector action's canonical form are also given.
引用
收藏
页码:39 / 43
页数:5
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