2006/10/31 by Ying-Qiu Gu, YING-QIU GU
Physics and Astronomy · #Advanced Mathematical Theories and Applications #Cosmology and Gravitation Theories #Relativity and Gravitational Theory #astro-ph #gr-qc
paper · pdf · doi:10.1142/s0217751x07037925
published as Int.J.Mod.Phys.A22:4667-4678,2007 · 13 pages, no figure, to appear in IJMPA
arxiv created 2007/10/08 · openalex publication_date 2007/10/10 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
In this paper, we discuss the system of Friedman–Robertson–Walker (FRW) metric coupling with massive nonlinear dark spinors in detail, where the thermodynamic movement of spinors is also taken into account. The results show that, the nonlinear potential of the spinor field can provide a tiny negative pressure, which resists the universe to become singular. The solution is oscillating in time and closed in space, which approximately takes the form: [Formula: see text], with [Formula: see text] light year, and δ = 0.96 ~ 0.99. The present time is about t ~ 18°.