论文标题
用无线电脉冲星进行重力测试
Gravity Tests with Radio Pulsars in Perturbative and Nonperturbative Regimes
论文作者
论文摘要
搜索以外的爱因斯坦一般相对论（GR）以外的经验线索对于了解引力和时空至关重要。自1970年代以来，无线电脉冲星一直在测试重力理论中发挥重要作用。由于二进制脉冲星的无线电时间对轨道动力学的变化非常敏感，因此可以捕获或约束GR预测的小偏差。从这个意义上讲，标准模型扩展中的重力部门用一组脉冲星系统严格限制。此外，在某些特定的替代性重力理论中，有可能形成与GR的非扰动偏差一样，因此无线电脉冲星在强烈的重力方案中也提供了相当独特的测试床。
Searches for empirical clues beyond Einstein's general relativity (GR) are crucial to understand gravitation and spacetime. Radio pulsars have been playing an important role in testing gravity theories since 1970s. Because radio timing of binary pulsars is very sensitive to changes in the orbital dynamics, small deviations from what GR predicts can be captured or constrained. In this sense, the gravity sector in the standard-model extension was constrained tightly with a set of pulsar systems. Moreover, compact objects like pulsars are possible to develop nonperturbative deviations from GR in some specific alternative gravity theories, thus radio pulsars also provide rather unique testbeds in the strong-gravity regime.
