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Hey Fred you asked about Tetrad Gravity today - new John Barrow paper (Dr. Quantum)

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  • JACK SARFATTI
    tangent space coordinate Latin indices are the zero g-force Local Inertial Frames (LIFs) Greek index spacetime coordinates are the locally coincident non-zero
    Message 1 of 1 , Jun 1, 2011

      tangent space coordinate Latin indices are the zero g-force Local Inertial Frames (LIFs)

      Greek index spacetime coordinates are the locally coincident non-zero g-force Local Non-Inertial Frames (LNIFs) including frames rotating about their centers of mass as well as translational accelerations as in detectors hovering at a fixed distance from the horizon of a black hole.
      Obviously these are spin 1 Lorentz group 4-vector fields.


      A general connection cannot be described just in terms of the tetrad (in the same way that the Christoffel symbols are not generically related to the metric components). The following relations hold






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