Abstract In this paper, we study a realistic model of quintessential inflation with radiation and matter. By the analysis of the dynamical system and numerical work about the evolution of the equation of state and cosmic density parameter, we show that this model is a good match for the current astronomical observation. The conclusion we obtain is in favour of the model where the modular part of the complex field plays the role of the inflaton whereas the argument part is the quintessence field. Numerical calculation shows that a heteroclinic orbit (solution of the dynamical system) is interpolated between early-time de Sitter phase (an unstable critical point) and a late-time de Sitter attractor.
Received: 22 November 2005
Revised: 11 June 2006
Accepted manuscript online:
(Origin, formation, and abundances of the elements)
Fund: Project supported by
the National Nature Science Foundation of China (Grant No 10473007) and
the Shanghai Rising-Star
Program (Grant No 02QA14033).
Cite this article:
Zhai Xiang-Hua(翟向华) and Zhao Yi-Bin(赵一斌) Dynamics of quintessential inflation 2006 Chinese Physics 15 2465
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
