用引力相位因子理解引力红移和宇宙学红移的多普勒频移
Understanding the gravitational and cosmological redshifts as Doppler shifts by gravitational phase factors
摘要：
从规范引力理论的观点看，与路径有关的引力相位因子定义了不同位置的局域惯性坐标系之间的洛伦兹变换。有了这一点，我们证明了弯曲时空中的光谱位移，如引力和宇宙学红移，可以理解为多普勒频移。所有这些位移都统一地解释为源于自由落体观测者与波源和接收器的相对运动。本文还讨论了弯曲时空中量子系统的引力相因子。
英文摘要：
From the viewpoint of gauge gravitational theories, the path dependent gravitational phase factors define the Lorentz transformations between the local inertial coordinate systems of different positions. With this point we show that the spectral shifts in the curved spacetime, such as the gravitational and cosmological redshifts, can be understood as Doppler shifts. All these shifts are interpreted in a unified way as being originated from the relative motion of the free falling observers instantaneously static with the wave source and the receiver respectively. The gravitational phase factor of quantum systems in the curved spacetime is also discussed.
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