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arXiv · 1504.05774

Spacetime, Spin and Gravity Probe B

James M. Overduin
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Abstract

It is more important than ever to push experimental tests of gravitational theory to the limits of existing technology in both range and sensitivity. This brief review focuses on spin-based tests of General Relativity and their implications for alternative, mostly non-metric theories of gravity motivated by the challenge of unification with the Standard Model of particle physics. The successful detection of geodetic precession and frame-dragging by Gravity Probe B places new constraints on a number of these theories, and increases our confidence in the theoretical mechanisms underpinning current ideas in astrophysics and cosmology.

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James M. Overduin. 2015-04-22. Spacetime, Spin and Gravity Probe B. https://doi.org/10.1088/0264-9381/32/22/224003

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