2008/07/22 by Morteza Mohseni
Engineering · Physics and Astronomy · #Black Holes and Theoretical Physics #Fluid dynamics and aerodynamics studies #Larmor precession #Magnetic field #Precession #Quantum Electrodynamics and Casimir Effect #Spin (aerodynamics) #Spinning #Torsion (gastropod) #Transverse plane #gr-qc
paper · pdf · doi:10.1140/epjc/s10052-008-0693-4
published in The European Physical Journal C 56(4) (Springer Science+Business Media) · latex, 4 eps figures
arxiv created 2008/07/22 · openalex publication_date 2008/08/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We investigate the motion of a spinning test particle in a spatially-flat FRW-type space-time in the framework of the Einstein-Cartan theory. The space-time has a torsion arising from a spinning fluid filling the space-time. We show that for spinning particles with nonzero transverse spin components, the torsion induces a precession of particle spin around the direction of the fluid spin. We also show that a charged spinning particle moving in a torsion-less spatially-flat FRW space-time in the presence of a uniform magnetic field undergoes a precession of a different character.