期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 9, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP09(2019)015
关键词
Chern-Simons Theories; Field Theories in Lower Dimensions; Gauge Symmetry
资金
- Conicyt [21160649, 21160827]
- Chilean Government through the Centers of Excellence Base Financing Program of Conicyt
- MINECO [FPA2016-76005-C2-1-P]
- Consolider CPAN
- Spanish government (MINECO/FEDER) under ICCUB (Unidad de Excelencia Maria de Maeztu) [MDM-2014-0369]
We construct Chern-Simons gravities in (2 + 1)-dimensional space-time considering the Stringy Galilei algebra both with and without non-central extensions. In the first case, there is an invariant and non-degenerate bilinear form, however the field equations do not allow to express the spin connections in terms of the dreibeins. In the second case there is no invariant non-degenerate bilinear form. Therefore, in both cases we do not have an ordinary gravity theory. Instead, if we consider the stringy Newton-Hooke algebra with extensions as gauge group we have an invariant non-degenerate metric and from the field equations we express the spin connections in terms of the geometric fields.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据