A precision measurement of the gravitational redshift by the interference of matter waves

@article{Mller2010APM,
  title={A precision measurement of the gravitational redshift by the interference of matter waves},
  author={Holger M{\"u}ller and Achim Peters and Steven Chu},
  journal={Nature},
  year={2010},
  volume={463},
  pages={926-929}
}
One of the central predictions of metric theories of gravity, such as general relativity, is that a clock in a gravitational potential U will run more slowly by a factor of 1 + U/c2, where c is the velocity of light, as compared to a similar clock outside the potential. This effect, known as gravitational redshift, is important to the operation of the global positioning system, timekeeping and future experiments with ultra-precise, space-based clocks (such as searches for variations in… Expand

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