Considerations of Cosmic Acceleration

Abstract

I discuss a solution to the dark energy problem, which arises when the visible universe is approximated by a black hole, in a quasi-static asymptotically-flat approximation. Using data, provided by WMAP7, I calculate the Schwarzschild radius $r_S$ and compare to the measured physical radius of the visible universe, bounded by the surface of last scatter. The ratio, $\epsilon (t_0)=r/r_S$ is found to be comparable to $\epsilon =1$, as allowed by the holographic principle. The measurement of a shift parameter, $\sigma$, introduced by Bond, Efstathiou and Tegmark in 1997, plays an important role in the accuracy of the calculation. The approximation leads to a surprisingly small discrepancy, presumably explicable by the de Sitter, and expanding, nature of the actual universe.

References in corpus (8)

• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• On the Origin of Gravity and the Laws of Newton
• Primordial Black Holes as All Dark Matter
• A Larger Estimate of the Entropy of the Universe
• Entropic Accelerating Universe
• Entropic Inflation
• Identification of All Dark Matter as Black Holes
• Upper and Lower Bounds on Gravitational Entropy