Information Equation of State
| Autor: | Gough, Paul |
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| Rok vydání: | 2007 |
| Předmět: | |
| Zdroj: | Entropy, Vol10, pp150-159, 2008 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.3390/entropy-e10030150 |
| Popis: | Landauer's principle is applied to information in the universe. Once stars began forming, the increasing proportion of matter at high stellar temperatures compensated for the expanding universe to provide a near constant information energy density. The information equation of state was close to the dark energy value, w = -1, for a wide range of redshifts, 10> z >0.8, over one half of cosmic time. A reasonable universe information bit content of only 10^87 bits is sufficient for information energy to account for all dark energy. A time varying equation of state with a direct link between dark energy and matter, and linked to star formation in particular, is clearly relevant to the cosmic coincidence problem.In answering the "Why now?" question we wonder "What next?" as we expect the information equation of state to tend towards w = 0 in the future. Comment: 10 pages, 2 figures |
| Databáze: | arXiv |
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