Eur. Phys. J. C (2015) 75: 143
https://doi.org/10.1140/epjc/s10052-015-3365-1

Regular Article - Theoretical Physics

The phase-space analysis of scalar fields with non-minimally derivative coupling

¹ Department of Astronomy, Beijing Normal University, Beijing, 100875, China
² MOE Key Laboratory of Fundamental Quantities Measurement, School of Physics, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China

^* e-mail: yggong@mail.hust.edu.cn

Received: 28 December 2014
Accepted: 18 March 2015
Published online: 9 April 2015

Abstract

We perform a dynamical analysis for the exponential scalar field with non-minimally derivative coupling. For the quintessence case, the stable fixed points are the same with and without the non-minimally derivative coupling. For the phantom case, the attractor with dark energy domination exists for the minimal coupling only. For the non-minimally derivative coupling without the standard canonical kinetic term, only the de Sitter attractor exists, and the dark matter solution is unstable.