Asymptotic cosmological behavior of scalar-torsion mode in Poincaré gauge theory

  title={Asymptotic cosmological behavior of scalar-torsion mode in Poincar{\'e} gauge theory},
  author={Chao-Qiang Geng and Chung-Chi Lee and H-H. Tseng},
  journal={Physical Review D},
We study the cosmological effect of the simple scalar-torsion ($0^+$) mode in Poincar\'{e} gauge theory of gravity. We find that for the non-constant (affine) curvature case, the early evolution of the torsion density $\rho_T$ has a radiation-like asymptotic behavior of $a^{-4}$ with $a$ representing the scale factor, along with the stable point of the torsion pressure ($P_T$) and density ratio $P_T/\rho_T\rightarrow 1/3$ in the high redshift regime $(z \gg 0)$, which is different from the… 
2 Citations

Figures from this paper

General Poincaré Gauge Theory Cosmology
For the quadratic Poincar\'e gauge theory of gravity (PG) we consider the FLRW cosmologies using an isotropic Bianchi representation. Here the considered cosmologies are for the general case: all the


Scalar-torsion mode in a cosmological model of the Poincaré gauge theory of gravity
We investigate the scalar-torsion mode in a cosmological model of the Poincare gauge theory of gravity. We treat the geometric effect of torsion as an effective quantity, which behaves like dark
Torsion cosmology and the accelerating universe
Investigations of the dynamic modes of the Poincare gauge theory of gravity found only two good propagating torsion modes; they are effectively a scalar and a pseudoscalar. Cosmology affords a
Cosmological dynamics with propagating Lorentz connection modes of spin zero
The Poincare gauge theory of gravity has a Lorentz connection with both torsion and curvature. For this theory two good propagating connection modes, carrying spin-0+ and spin-0−, have been found.
General Relativity with Spin and Torsion: Foundations and Prospects
A generalization of Einstein's gravitational theory is discussed in which the spin of matter as well as its mass plays a dynamical role. The spin of matter couples to a non-Riemannian structure in
Quadratic Poincaré gauge theory of gravity: A comparison with the general relativity theory
The classical dynamics of the gravitational field in the Poincaré gauge theory is studied. The most general Lagrangian quadratic in curvature and torsion is considered. The relevant field equations
Dynamics of dark energy
We review in detail a number of approaches that have been adopted to try and explain the remarkable observation of our accelerating universe. In particular we discuss the arguments for and recent
Measurements of $\Omega$ and $\Lambda$ from 42 high redshift supernovae
We report measurements of the mass density, Omega_M, and cosmological-constant energy density, Omega_Lambda, of the universe based on the analysis of 42 Type Ia supernovae discovered by the Supernova
Cosmological parameters from SDSS and WMAP
We measure cosmological parameters using the three-dimensional power spectrum P(k) from over 200,000 galaxies in the Sloan Digital Sky Survey (SDSS) in combination with WMAP and other data. Our