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Entropy 2008, 10(3), 150-159; doi:10.3390/entropy-e10030150
Information Equation of State
Space Science Centre, University of Sussex, Brighton, BN1 9QT, United Kingdom
Published: 30 July 2008
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Abstract: Landauer’s principle is applied to information in the universe. Once stars began forming there was a constant information energy density as the increasing proportion of matter at high stellar temperatures exactly compensated for the expanding universe. 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 1087 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.c
Keywords: Information; Energy; Landauer’s principle; Cosmology
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MDPI and ACS Style
Gough, M.P. Information Equation of State. Entropy 2008, 10, 150-159.AMA Style
Gough MP. Information Equation of State. Entropy. 2008; 10(3):150-159.Chicago/Turabian Style
Gough, M. P. 2008. "Information Equation of State." Entropy 10, no. 3: 150-159.