Bekenstein and the Holographic Principle: Upper bounds for Entropy

Antonio Alfonso-Faus, Màrius Josep Fullana i Alfonso

Using the Bekenstein upper bound for the ratio of the entropy $S$ of any bounded system, with energy $E=M{c}^2$ and effective size $R$, to its energy $E$ i.e. $S/E<2\pi kR/\hslash c$…