We study how quantum systems that propagate in the spacetime of a rotating planet are affected by the curved background. Spacetime curvature affects wavepackets of photons propagating from Earth to a satellite, and the changes in the wavepacket encode the parameters of the spacetime. This allows us to evaluate quantitatively how quantum communications are affected by the curved spacetime background of the Earth and to achieve precise measurements of Earth’s Schwarzschild radius and equatorial angular velocity. We then provide a comparison with the state of the art in parameter estimation obtained through classical means. Satellite to satellite communications and future directions are also discussed.

中文翻译：

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旋转行星的时空中的量子通信和量子计量学。

我们研究了在旋转行星的时空中传播的量子系统如何受到弯曲背景的影响。时空曲率会影响从地球传播到卫星的光子波包，并且波包中的变化会编码时空的参数。这使我们能够定量地评估量子通信如何受到地球弯曲的时空背景的影响，并实现对地球Schwarzschild半径和赤道角速度的精确测量。然后，我们将通过经典方法获得的参数估计与现有技术进行比较。还讨论了卫星到卫星的通信以及未来的方向。