标题： 微扰弦动力学在光子球附近 显示英文标题

标题： Perturbative String Dynamics Near the Photon Sphere

摘要： 在施瓦茨希尔德时空中的光子球附近，基于对重新缩放的弦张力作为小参数的摄动方法，考虑了弦的动力学。 零阶和一阶近似下的摄动弦解被给出。 摄动解对应于施瓦茨希尔德时空中光子球的小变形。 显示英文摘要

摘要： String dynamics near the photon sphere in Schwarzschild spacetime is considered on the basis of a perturbative approach with respect to a rescaled string tension as a small parameter. The perturbative string solution in the zeroth and first approximation is presented. The perturbative solution corresponds to a small deformations of the photon sphere in Schwarzschild spacetime.