The lightest tier includes all PBHs with masses below one hundred solar masses. Several independent cosmological probes, show that the dominant energyĬondition is fitter than other energy conditions. We discuss the relationship between dark matter and the entropy of the universe, with the premise that dark matter exists in the form of primordial black holes (PBHs) in a hierarchy of mass tiers. Universe, according to the theoretical prediction, OHD, thermodynamics and On the other hand, we compare the theoretical entropy densityįrom the conservation law of energy-momentum tensor with that from the energyĬonditions using the observational Hubble parameter. The aim of this book is to explain in simple language what we know and what we do not know about information and. On the one hand, weįind that these conditions imply that entropy density s depends on Hubble Information, Entropy, Life and the Universe. Entropy is a measure of energy dispersal, in units energy over temperature (joule per kelvin (J/K)). In this paper, we present an extended analysis of the energyĬonditions based upon the entropy density of the universe. The Universe has entropy, measurable in principle but not in practice.
Information about the violation between the energy conditions and the Since then, it has been continually extended, interpreted, and applied by researchers in many scientific fields, such as general physics, information theory, chaos theory, data mining, and mathematical linguistics. However, this method can not provide us the detailed About 160 years ago, the concept of entropy was introduced in thermodynamics by Rudolf Clausius. Model, the energy conditions provides model-independent bounds on the behavior When you have an inflating universe, the maximum entropy state is the one which can fit in a deSitter horizon, which has a maximum entropy equal to the.
UNIVERSE ENTROPY PDF
Authors: Wen-Fei Liu (1 and 2), Jing Niu (2), Juan Li (1), Tong-Jie Zhang (2 and 1) ((1) College of Physics and Electronic Engineering, Qilu Normal University,(2) Department of Astronomy, Beijing Normal University) Download PDF Abstract: In the standard Friedmann-Lemaitre-Robertson-Walker (FLRW) cosmological
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