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Tilted string cosmologies
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DOI：10.1016/S0370-2693(99)00222-1.png)
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Global symmetries of the string effective action are employed to generate tilted, homogeneous Bianchi type VIh string cosmologies from a previously known stiff perfect fluid solution to Einstein gravity. The dilaton field is not constant on the surfaces of homogeneity. The future asymptotic state of the models is interpreted as a plane wave and is itself an exact solution to the string equations of motion to all orders in the inverse string tension. An inhomogeneous generalization of the Bianchi type III model is also found. (C) 1999 Elsevier Science B.V. All rights reserved.
Keyword:
SPACE
SYMMETRIES
DUALITY
MODELS
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4.5
论文数:
3.2W
被引数:
7.3W
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