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Newtonian Forms for Dilaton Spacetimes in String Theory |
| YANG Rong-Jia;JING Ji-Liang |
| Institute of Physics and Department of Physics, Hunan Normal University, Changsha 410081 |
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| Cite this article: |
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YANG Rong-Jia, JING Ji-Liang 2004 Chin. Phys. Lett. 21 580-583 |
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Abstract We show that the Newtonian forms for the motion of particles in mechanics and for light in geometrical optics can be extend to the Gibbons-Meada and the Garfinkle-Horne dilaton spacetimes in string theory. As an example, we study the bending of the light rays, the perihelion advance of a planet, and the radar echo delay in the dilaton spacetimes. The results show that the gravitational effects arising from the dilaton can be observed provided that the dilaton is large enough.
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| Keywords:
95.30.Sf
04.20.-q
04.90.+e
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Published: 01 March 2004
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| PACS: |
95.30.Sf
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(Relativity and gravitation)
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04.20.-q
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(Classical general relativity)
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04.90.+e
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(Other topics in general relativity and gravitation)
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