How Would Quantum Forces Change If the Classical Charge Equation Altered?

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SUMMARY

The discussion centers on the implications of altering the classical Coulomb's law equation from the standard form of k x q1 x q2 / r^2 to alternative forms such as k x q1 x q2 / r^3 or k x q1 x q2 / r^4. Participants explore how these changes would affect force relations on a quantum scale, particularly in terms of coupling constants. Additionally, the conversation touches on the theoretical consequences of having the distance variable (r) in the numerator, suggesting that force could increase with distance, which challenges conventional physics principles.

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  • Familiarity with quantum field theory (QFT)
  • Knowledge of coupling constants in particle physics
  • Basic grasp of classical electromagnetism principles
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kurious
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If the classical attraction between two coulomb charges was
constant x q1 x q2 / r ^3 or another constant x q1 x q2/ r^4 instead of
k x q1 x q2 / r ^2 (perhaps the constants could still be the
same-though I doubt it)
what would be the force relations on a quantum scale using coupling
constants?
Also what are the force relations if the r terms are on the top line
so force increases with distance?


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I don't quite understand what you are asking.
Maybe you can show which "normal" (i.e., with an inverse square law) version of "force relations on a quantum scale" you are thinking about, so that we can speculate on how they change if r^2 is replaced by r^3.

Also, it may help to know your motivation for this question.
 
If qft can derive kqq/r*r for large distances then at short distances shouldn't the force between charges be expressible in terms of a similar relation with different power of r and a different value of k.
 

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