Regular accelerating Universe without dark energy

Abstract

Homogeneous isotropic cosmological models with two torsion functions filled with scalar fields and usual gravitating matter are built and investigated in the framework of the Poincaré gauge theory of gravity. It is shown that by certain restrictions on indefinite parameters of gravitational Lagrangian the cosmological equations at asymptotics contain an effective cosmological constant that can explain observable acceleration of cosmological expansion. The behavior of inflationary cosmological solutions at extremely high energy densities is analyzed, regular bouncing solutions are obtained. The role of the space-time torsion provoking the acceleration of cosmological expansion is discussed.

15 pages, 16 figures, iopart class file, some additions made

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Cited by in corpus (33)

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• Analytical approach of late-time evolution in a torsion cosmology
• Accelerating Universe with spacetime torsion but without dark matter and dark energy
• Poincaré Gauge Theory With Coupled Even And Odd Parity Dynamic Spin-0 Modes: Dynamic Equations For Isotropic Bianchi Cosmologies
• On the torsion effects of a relativistic spin fluid in early cosmology
• De Sitter spacetime with torsion as physical spacetime in the vacuum
• Cosmology in Poincare gauge gravity with a pseudoscalar torsion
• Statefinder diagnostic in a torsion cosmology
• Late-time acceleration and inflation in a Poincaré gauge cosmological model
• On some physical aspects of isotropic cosmology in Riemann-Cartan spacetime
• Cosmological Solutions with Torsion in a Model of de Sitter Gauge Theory of Gravity
• Poincaré gauge theory with even and odd parity dynamic connection modes: isotropic Bianchi cosmological models
• Constraining Torsion in Maximally symmetric (sub)spaces
• Inflation by spin and torsion in Poincare gauge theory of gravity
• Inflation in the general Poincaré gauge cosmology
• Inflation in $R+R^2$ Gravity with Torsion
• Torsion and accelerating expansion of the universe in quadratic gravitation
• Low-Redshift Constraints on Covariant Canonical Gauge Theory of Gravity
• Gauge gravitation theory in Riemann-Cartan space-time and gravitational interaction
• Relationship of gauge gravitation theory in Riemann-Cartan spacetime and general relativity theory
• Mimetic-Metric-Torsion with induced Axial mode and Phantom barrier crossing
• Cosmological Dark sector from a Mimetic-Metric-Torsion perspective
• To theory of asymptotically stable accelerating Universe in Riemann-Cartan spacetime
• On theory of regular accelerating Universe in Riemann-Cartan spacetime
• The torsion cosmology in Kaluza-Klein theory
• Analysis of regular inflationary cosmological models with two torsion functions in Poincare gauge theory of gravity
• Rigorous derivation of dark energy and inflation as geometry effects in Covariant Canonical Gauge Gravity
• Limiting energy density and gravity in Riemann-Cartan space-time