Do state variables in general relativity have analogies in electromagnetism?

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SUMMARY

General relativity does not possess state variables analogous to those in electromagnetism, such as current (I), charge (Q), voltage (V), and flux (Φ). The discussion highlights that these variables do not appear in Maxwell's Equations, which serve as the electromagnetic counterpart to the Einstein Field Equations in general relativity. Consequently, the conclusion is that the framework of general relativity lacks direct analogs to the state variables found in electromagnetism.

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Hi, does general relativity have state variables, analogous to current (I), charge (Q), voltage (V), and flux (Φ) in electromagnetism? Thanks.
 
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cuallito said:
does general relativity have state variables, analogous to current (I), charge (Q), voltage (V), and flux (Φ) in electromagnetism?

None of the variables you give for electromagnetism appear in Maxwell's Equations, which are the EM analogue to the Einstein Field Equation of GR, so that would seem to mean the answer is no.
 

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