Journal
PHYSICS LETTERS B
Volume 628, Issue 1-2, Pages 113-124Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2005.08.127
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We calculate bulk thermodynamic properties, such as the pressure, energy density, and entropy, in SU(4) and SU(8) lattice gauge theories, for the range of temperatures T <= 2.0T(c) and T <= 1.6T(c) respectively. We find that the N = 4. 8 results are very close to each other, and to what one finds in SU(3), and are far from the asymptotic free-gas value. We conclude that any explanation of the high-T pressure (or entropy) deficit must be such as to survive the N -> infinity limit. We give some examples of this constraint in action and comment on what this implies for the relevance of gravity duals. (c) 2005 Elsevier B.V. All rights reserved.
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