Re: Relation of g^uv = (1/2) {gamma^u,gamma^v} to gravitational fields

Igor Khavkine wrote:
...
So, what is an "effective action"? And how do the terms in the
effective action change compared to their bare value?

Finally, the actual answer to your question is negative. Again,
*generically* there is no reason for any of the coefficients of the
effective action to change in unison with the coefficient of
fermion-photon coupling. In fact, the same kind of coefficient will not
change in the same way between different fermions, as evidenced by
say different magnetic moments of different elementary particles.
Igor

Evidentally Igor is forgetting the non-linearity of
the equations, specifically "positive feed-back",
and "negative feed-back", well known in basic
engineering.
To Igor's question, the measurement is constrained
by the harmonics, as defined 1st by de Broglie,
wherein all energy is a frequency.
Regards
Ken S. Tucker

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