Free field realization of cylindrically symmetric Einstein gravity

被引：10

作者：

Cruz, J ^{[1
]}

Mikovic, A

Navarro-Salas, J

机构：

[1] Univ Valencia, Fac Fis, Ctr Mixto Univ Valencia CSIC, Dept Fis Teor, E-46100 Valencia, Spain

[2] Univ Valencia, Fac Fis, Ctr Mixto Univ Valencia CSIC, IFIC, E-46100 Valencia, Spain

来源：

PHYSICS LETTERS B | 1998年 / 437卷 / 3-4期

关键词：

cylindrical gravity; canonical transformations; free fields;

D O I：

10.1016/S0370-2693(98)00904-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Cylindrically reduced Einstein gravity can be regarded as an SL(2, R)/SO(2) sigma model coupled to 2D dilaton gravity. By using the corresponding 2D diffeomorphism algebra of constraints and the asymptotic behaviour of the Ernst equation we show that the theory can be mapped by a canonical transformation into a set of free fields with a Minkowskian target space. We briefly discuss the quantization in terms of these free-field variables, which is considerably simpler than in the other approaches. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：273 / 278

页数：6

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