Stringy (Galilei) Newton-Hooke Chern-Simons gravities

Aviles, Luis; Gomis, Joaquim; Hidaloo, Diego

Abstract

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.

Más información

Título según WOS: Stringy (Galilei) Newton-Hooke Chern-Simons gravities
Título de la Revista: JOURNAL OF HIGH ENERGY PHYSICS
Número: 9
Editorial: Springer
Fecha de publicación: 2019
DOI:

10.1007/JHEP09(2019)015

Notas: ISI