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arXiv · 2408.13016

The Frame-Dragging effect on the excitation rate of atoms

Rui-Chen Liu·C. P. Sun
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Abstract

The frame-dragging phenomenon in gravitational fields is revisited to explore the geometric effects induced by spacetime curvature. We quantize a massless scalar field in the spacetime of a rotating sphere, incorporating the frame-dragging frequency into the field modes. The excitation rate for an atom undergoing uniform circular motion and interacting with the scalar field is calculated. Our results reveal that the time-dependent excitation rates of atoms following different trajectories exhibit a common envelope, from which the frame-dragging frequency can be effectively extracted. This discovery leads us to propose a novel detection scheme for measuring the frame-dragging frequency caused by rotating celestial bodies, eliminating the need for traditional starlight calibration methods.

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Rui-Chen Liu, C. P. Sun. 2024-08-23. The Frame-Dragging effect on the excitation rate of atoms. https://arxiv.org/abs/2408.13016

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