2021•Unpublished venueOpen access

Unification for Gravity and Electromagnetic Field in Kerr Newman Solution

Sangwha Yi

Abstract

Solutions of unified theory equations of gravity and electromagnetism has to satisfy Einstein-Maxwellequation. Specially, solution of the unified theory is generally Kerr-Newman solution in vacuum. We finallyfound the revised Einstein gravity tensor equation with new term (2-order contravariant metric tensor two timesproduct and the constant matrix) is right in Kerr-Newman solution.

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Key concepts: Covariance and contravariance of vectors, Physics, Einstein tensor, Einstein, Metric tensor, Unified field theory, Electromagnetism, Higher-dimensional Einstein gravity