Gough, M Paul (2008) Information equation of state. Entropy, 10 (3). pp. 150-159. ISSN 1099-4300

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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

Item Type:	Article
Keywords:	Information; Energy; Landauer’s principle; Cosmology
Schools and Departments:	School of Engineering and Informatics > Engineering and Design
Depositing User:	Paul Gough
Date Deposited:	06 Feb 2012 20:01
Last Modified:	10 Jul 2012 12:59
URI:	http://sro.sussex.ac.uk/id/eprint/23550

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