Remarks on the reduced phase space of (2+1)-dimensional gravity on a torus in the Ashtekar formulation

被引:1
|
作者
Mikovic, A [1 ]
Manojlovic, N
机构
[1] Univ Valencia, CSIC, Dept Fis Teor, Valencia 46100, Spain
[2] Univ Valencia, CSIC, IFIC, Valencia 46100, Spain
[3] Inst Phys, YU-11001 Belgrade, Yugoslavia
[4] Univ Algarve, Unidad Ciencias Exactas & Humanas, Sector Matemat, P-8000 Faro, Portugal
关键词
D O I
10.1088/0264-9381/15/10/009
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We examine the reduced phase space of the Barbero-Varadarajan solutions of the Ashtekar formulation of (2 + 1)-dimensional general relativity on a torus; We show that it is a finite-dimensional space due to the existence of an infinite-dimensional residual gauge invariance which reduces the infinite-dimensional space of solutions to a finite-dimensional space of gauge-inequivalent solutions. This is in agreement with general arguments which imply that the number of physical degrees of freedom for (2 + 1)-dimensional Ashtekar gravity on a torus is finite.
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页码:3031 / 3039
页数:9
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