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Joined 2026-09-21 Message
Incoming links: Scalar-tensor theory
Scalar-tensor theory 2026-10-14
A scalar-tensor theory uses a metric tensor and an additional scalar field to mediate gravity. A scalar multiplier of the Ricci scalar makes the curvature coupling depend on that field. The Brans-Dicke theory is a standard example; the choice of scalar potential and kinetic coupling distinguishes different members of the class.