The Einstein static universe with torsion and the sign problem of the cosmological constant

2003/10/31 by Christian G. Boehmer, C G Böhmer · 2 citations
Engineering · Physics and Astronomy · #Cosmology and Gravitation Theories #Material Science and Thermodynamics #Relativity and Gravitational Theory #astro-ph #gr-qc #hep-th

paper · pdf · doi:10.1088/0264-9381/21/4/025

published as Class.Quant.Grav. 21 (2004) 1119-1124 · 8 pages, LaTeX; minor layout changes, typos corrected, one new equation, new reference [5], completed reference [13], two references added

openalex publication_date 2004/01/22 · arxiv created 2006/02/04 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30

Abstract

In the field equations of Einstein–Cartan theory with cosmological constant a static spherically symmetric perfect fluid with spin density satisfying the Weyssenhoff restriction is considered. This serves as a rough model of space filled with (fermionic) dark matter. From this the Einstein static universe with constant torsion is constructed, generalizing the Einstein cosmos to Einstein–Cartan theory. The interplay between torsion and the cosmological constant is discussed. A possible way out of the cosmological constant's sign problem is suggested.

Citations

• On Massive Neutron Cores
• Quintessence and the Rest of the World
• Static Solutions of Einstein's Field Equations for Spheres of Fluid

Cited by

• Dark spinors with torsion in cosmology
• Stability of the Einstein static universe in IR modified Hořava gravity