| Newtonian Forms for Dilaton Spacetimes in String Theory |
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| 作者姓名： | 杨荣佳 荆继良 |
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| 作者单位： | InstituteofPhysicsandDepartmentofPhysics,HunanNormalUniversity,Changsha410081 |
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| 摘 要： | 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 GarfinMe-Horne dilaton spacetimes in string theory. As an example,we study the bending of the light rays, the perihelion advance of 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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| 关 键 词： | 应力理论 Dilaton时空 牛顿格式 雷达回声延迟 重力场 麦克斯韦场 |
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