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arXiv 0902.1811gr-qc
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强引力场中的光钟

Light clocks in strong gravitational fields

Raffaele Punzi, Frederic P. Schuller, Mattias N. R. Wohlfarth

摘要:

我们认为,用光子而不是经典光操作的光钟所测量的时间需要对广义相对论中的标准钟假设进行改进。在存在引力场的情况下,对经典麦克斯韦理论的单圈量子修正已经影响了光的传播和观察者参考系的构建。仔细考虑这些运动学效应,一个简洁的几何表达式所示的光钟的时间。这一结果对强引力场中的物理学具有深远的意义。

英文摘要:

We argue that the time measured by a light clock operating with photons rather than classical light requires a refinement of the standard clock postulate in general relativity. In the presence of a gravitational field, already the one-loop quantum corrections to classical Maxwell theory affect light propagation and the construction of observers' frames of reference. Carefully taking into account these kinematic effects, a concise geometric expression for the time shown by a light clock is obtained. This result has far-reaching implications for physics in strong gravitational fields.

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