Spacetime, Spin and Gravity Probe B

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.

To appear in a special issue of Classical and Quantum Gravity devoted to the GP-B experiment. 13 pages, 1 figure

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Cited by in corpus (8)

• Tests of gravitational symmetries with radio pulsars
• Gravity Probe Spin: Prospects for measuring general-relativistic precession of intrinsic spin using a ferromagnetic gyroscope
• Gravitomagnetic effect in magnetized neutron stars
• Spacetime, Spin and Gravity Probe B
• Gravitomagnetism and the significance of the curvature scalar invariants
• Inertial Frame Dragging and Relative Rotation of ZAMOs in Axistationary Asymptotically Flat Spacetimes
• Post-Newtonian Tests of Gravitational Quantum Field Theory with Spin and Scaling Gauge Symmetry
• Gravity as field - field oriented framework reproducing General Relativity