Physics – General Physics
Scientific paper
2010-05-13
J.Phys.Conf.Ser.259:012015,2010
Physics
General Physics
Typo in Eq.(4). Sentence in discussion
Scientific paper
10.1088/1742-6596/259/1/012015
Using data, provided by WMAP7, I calculate the entropy of the visible universe, where visible refers to electromagnetic radiation, and hence the visible universe is bounded by the Surface of Last Scatter. The dimensionless entropy, $S/k$, is $(8.85 \pm 0.37)$ times larger than allowed by a simplified and non-covariant holographic principle, that the entropy cannot exceed that of a black hole. The measurement of a shift parameter, introduced by Bond, Efstathiou and Tegmark in 1997, plays an important role in the accuracy of the calculation, which leads to the large discrepancy.
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