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Gravity, Equivalence Principle and Clocks

Thibault Damour
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Abstract

String theory suggests the existence of gravitational-strength scalar fields (``dilaton'' and ``moduli'') whose couplings to matter violate the equivalence principle. This provides a new motivation for high-precision clock experiments, as well as a generic theoretical framework for analyzing their significance.

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Thibault Damour. 1997-11-20. Gravity, Equivalence Principle and Clocks. https://arxiv.org/abs/gr-qc/9711060

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