Spinning Particles in Scalar-Tensor Gravity with Torsion

Details Spinning Particles in Scalar-Tensor Gravity with Torsion Spinning Particles in Scalar-Tensor Gravity with Torsion

Oct 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc.1059...13w&link_type=abstract

RELATIVISTIC ASTROPHYSICS: 5th Sino-Italian Workshop on Relativistic Astrophysics. AIP Conference Proceedings, Volume 1059, pp.

Astronomy and Astrophysics

Astrophysics

Classical General Relativity, Einstein-Maxwell Spacetimes, Spacetimes With Fluids, Radiation Or Classical Fields, String And Brane Phenomenology, Experimental Studies Of Gravity, Quantum Gravity

Scientific paper

A new model of neutral spinning particles in scalar-tensor gravity with torsion is developed by using a Fermi coordinates associated with orthonormal frames attached to a timelike curve and Noether identities. We further analyze its equations of motion both in background Brans-Dicke torsion field and the constant pseudo-Riemannian curvature with a constant scalar field. It turns that the particle's spin vector is parallel transport along its wordline in the Brans-Dicke torsion field and de Sitter spacetime. However, the dynamics of the spinning particle cannot completely determined in anti-de Sitter spacetime and it requires a further investigation.

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