Spinning particles in scalar-tensor gravity
classification
🌀 gr-qc
keywords
connectionmetric-compatibleparticlespinningalongautoparallelbrans-dickecoupling
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We develop a new model of a spinning particle in Brans-Dicke spacetime using a metric-compatible connection with torsion. The particle's spin vector is shown to be Fermi-parallel (by the Levi-Civita connection) along its worldline (an autoparallel of the metric-compatible connection) when neglecting spin-curvature coupling.
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