In general relativity, a scalar field solution is an exact solution of the Einstein field equation in which the gravitational field is due entirely to the field energy and momentum of a scalar field. Such a field may or may not be massless, and it may be taken to have minimal curvature coupling, or some other choice, such as conformal coupling.
Read more about Scalar Field Solution: Mathematical Definition, Physical Interpretation, Einstein Tensor, Eigenvalues, Examples
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