De Sitter spacetime with torsion as physical spacetime in the vacuum

Abstract

Homogeneous isotropic models built in the framework of the Poincaré gauge theory of gravity (PGTG) based on general expression of gravitational Lagrangian without cosmological constant are analyzed. It is shown that the physical spacetime in the vacuum in the frame of PGTG can have the structure of flat de Sitter spacetime with torsion. Some physical consequences of obtained conclusion are discussed.

8 pages

References in corpus (3)

• Regular accelerating Universe without dark energy
• Infrared Modified Gravity with Dynamical Torsion
• Accelerating Universe with spacetime torsion but without dark matter and dark energy

Cited by in corpus (13)

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• Cosmology in Poincare gauge gravity with a pseudoscalar torsion
• Self-accelerating Universe in modified gravity with dynamical torsion
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• Inflation by spin and torsion in Poincare gauge theory of gravity
• Torsion and accelerating expansion of the universe in quadratic gravitation
• On the stability of self-accelerating Universe in modified gravity with dynamical torsion
• Gauge gravitation theory in Riemann-Cartan space-time and gravitational interaction
• Relationship of gauge gravitation theory in Riemann-Cartan spacetime and general relativity theory
• On theory of regular accelerating Universe in Riemann-Cartan spacetime
• To theory of asymptotically stable accelerating Universe in Riemann-Cartan spacetime
• Limiting energy density and gravity in Riemann-Cartan space-time
• Gauge gravitation theory in Riemann-Cartan space-time and the nonsingular Universe