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Paper   IPM / Astronomy / 17390
School of Astronomy
  Title:   Spin-Gravity Coupling in a Rotating Universe
1.  Bahram . Mashhoon
2.  Masoud . Molaei
3.  Yuri N. . Obukhov
  Status:   Published
  Journal: Universe
  Vol.:  15
  Year:  2023
  Supported by:            ipm IPM
The coupling of intrinsic spin with the nonlinear gravitomagnetic fields of Goedel-type spacetimes is studied. We work with Goedel-type universes in order to show that the main features of spin-gravity coupling are independent of causality problems of the Goedel universe. The connection between the spin-gravitomagnetic field coupling and Mathisson's spin-curvature force is demonstrated in the Goedel-type universe. That is, the gravitomagnetic Stern--Gerlach force due to the coupling of spin with the gravitomagnetic field reduces in the appropriate correspondence limit to the classical Mathisson spin-curvature force.

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