Journal
PHYSICS LETTERS B
Volume 555, Issue 3-4, Pages 139-143Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0370-2693(03)00055-8
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It is suggested, by using a covariant Lagrangian formalism to estimate the equation of state w = p/p, that stringy dark energy predicts w < -1, a negative pressure larger in magnitude than that for a cosmological constant or quintessence. This would lead to a later transition from decelerating to accelerating cosmological expansion; w = -4/3 is briefly considered as one illustrative example. (C) 2003 Published by Elsevier Science B.V.
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