Can Spin Transformations Link Gravity and Electromagnetism?

In summary, The conversation discusses the concept of the graviton as a spin 2 particle and the possibility of it transforming into 2 x spin 1 particles and vice versa, leading to the idea that gravity and electric force could be interchangeable. The question of detecting these transformations in a laboratory is raised, but it is noted that forces and interactions do not mix together and renormalization may not provide a solution. The idea of a theory that can work at arbitrary energy is also questioned, with the possibility of a master equation being mentioned. However, it is acknowledged that there may be more to the story and the concept of computing non-trivial path integrals is also discussed.
  • #1
Rothiemurchus
203
1
The graviton is postulated to be spin 2.
But if a spin 2 became 2 x spin 1 sometimes then
the force of gravity could become the electric force.
And similarly 2 x spin 1 could become 1 x spin 2 sometimes.
How would the effects of such transformations be detected in
the laboratory?
The force of gravity between two masses would be larger than predicted
by relativity theory wouldn't it because there would be more spin 2 around than expected?
 
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  • #2
This is an easy picture. There are many other conservation laws that have to be respected when interactions occur. eg energy conservation, conservation of baryonnumber and lepton number, conservation of isospin etc...

regards
marlon
 
  • #3
Initially forces do not mix together, by definition. Then renormalisation includes all the fluctuations you propose. And finally renormalized interaction do not mix together either. So basically : no.
 
  • #4
Paul Dirac said a theory that is right should not need to be renormalised.
 
  • #5
I agree with him. That can't be a QFT.
 
  • #6
Be careful : believing we will ultimately find a theory that works at arbitrary energy is a religion. Believing Nature is not chaos is a religion too, but much less crazy.
 
  • #7
humanino said:
I agree with him. That can't be a QFT.

It could be if we could just solve the damn path integral directly, or figure out a way to borel resum it.

In a sense, we might already have the master equation (with suitable caveats). We just don't know what to do with it.

Then again, that's probably not the full story either, depending on who you talk too.
 
  • #8
Yes right, thanks Haelfix for the precision ! Zee in his (not-too-high-level-)book claimed the statement I just repeated, in the introduction to renormalization chapter, but he also indicated earlier in the book that computing non-trivial path integrals could be considered as one of the "holy-graal"
 

Related to Can Spin Transformations Link Gravity and Electromagnetism?

1. What are forces mixed together?

When we talk about forces being mixed together, we are referring to the concept of multiple forces acting on an object at the same time. These forces can be in the same direction or in opposite directions, and they can have different magnitudes and directions. The net result of all these forces will determine the motion of the object.

2. How do forces mix together?

Forces mix together through a process called vector addition. This involves adding the individual forces together to determine the net force acting on an object. The direction and magnitude of the net force will depend on the direction and magnitude of the individual forces.

3. Can forces cancel each other out when mixed together?

Yes, forces can cancel each other out when mixed together. This happens when there are two or more forces acting on an object in opposite directions with equal magnitudes. In this case, the net force will be zero and the object will remain at rest or continue moving at a constant velocity.

4. How do balanced and unbalanced forces play a role in forces mixing together?

When forces are mixed together, they can either be balanced or unbalanced. Balanced forces have equal magnitudes and opposite directions, resulting in a net force of zero. Unbalanced forces have unequal magnitudes or are acting in the same direction, resulting in a non-zero net force and causing the object to accelerate.

5. What are some real-life examples of forces mixing together?

There are many real-life examples of forces mixing together. For instance, when a person pushes a shopping cart, they are exerting a force in one direction while the friction between the wheels and the ground exerts a force in the opposite direction. Another example is when a person throws a ball, their hand exerts a force on the ball while gravity exerts a downward force. These forces mix together to determine the motion of the object.

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