Eur. Phys. J. C (2016) 76: 698
https://doi.org/10.1140/epjc/s10052-016-4546-2

Regular Article - Theoretical Physics

Mimicking the LCDM model with stealths

¹ Facultad de Física, Universidad Veracruzana, 91000, Xalapa, Veracruz, México
² Facultad de Ciencias, Instituto de Física y Astronomía, Universidad de Valparaíso, Av. Gran Bretaña 1111, Valparaiso, Chile
³ Instituto de Física, Pontificia Universidad Católica de Valparaíso, Avenida Brasil 2950, Casilla 4059, Valparaíso, Chile

^* e-mail: ccampuzano@uv.mx

Received: 15 November 2016
Accepted: 25 November 2016
Published online: 19 December 2016

Abstract

We present a new cosmological model that mimics the Lambda Cold Dark Matter by using a stealth field. This kind of field is characterized as not coupling directly to gravity; however, it is connected to the underlying matter content of the universe model. As is well known, stealth fields do not back-react on the space-time; however, their mimicry skills show how this field and its self-interaction potential determines the cosmic evolution. We show the study of the simplest model that can be developed with the stealth field.