paper

Relativistic effects due to gravimagnetic moment of a rotating body

arXiv:1709.06894 · doi:10.1103/PhysRevD.96.124013

Abstract

We compute exact Hamiltonian (and corresponding Dirac brackets) for spinning particle with gravimagnetic moment in an arbitrary gravitational background. corresponds to the Mathisson-Papapetrou-Tulczyjew-Dixon (MPTD) equations. leads to modified MPTD equations with reasonable behavior in the ultrarelativistic limit. So we study the modified equations in the leading post-Newtonian approximation. Rotating body with unit gravimagnetic moment has qualitatively different behavior as compared with MPTD body: A) If a number of gyroscopes with various rotation axes are freely traveling together, the angles between the axes change with time. B) For specific binary systems, gravimagnetic moment gives a contribution to frame-dragging effect with the magnitude, that turns out to be comparable with that of Schiff frame dragging.

21 pages

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