Does the Feynman diagram process actually exist, or is it just for computation?

In summary, the conversation discusses the concept of virtual particles and their existence, and whether the exchange of particles truly occurs in interactions. It is clarified that Feynman diagrams are tools for calculations in perturbation theory and do not hold any deeper meaning. The conversation also provides additional resources for understanding virtual particles and clears up any misconceptions.
  • #1
ronnie snooker
2
2
i want to known whether virtual particle exist or not , and does exchange of particle really happen in interaction.
 
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  • #2
You can't point to an interaction and say "it was this Feynman diagram". They are tools for calculations in perturbation theory, just like the virtual particles in the diagrams.
I fear everything beyond that is philosophy.
 
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  • #3
Just to hammer the point: Feynman diagrams are graphical representations of mathematical expressions for different terms in a perturbative expansion. There is nothing more to them than that.
 
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  • #5
thanks for all of you!
 
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Related to Does the Feynman diagram process actually exist, or is it just for computation?

1. What is the Feynman diagram process?

The Feynman diagram process is a visual representation of the mathematical calculations involved in quantum field theory. It was developed by physicist Richard Feynman as a way to simplify and visualize complex particle interactions.

2. Is the Feynman diagram process just for computation?

No, the Feynman diagram process is not just for computation. While it is a useful tool for performing calculations in quantum field theory, it also helps in understanding the underlying principles and interactions between particles.

3. How does the Feynman diagram process work?

The Feynman diagram process works by representing the interactions between particles as lines and vertices on a graph. Each line represents a particle, and the vertices represent the interaction between particles. The calculations involve assigning mathematical equations to each line and vertex, and then combining them to determine the overall probability of a particle interaction.

4. Is the Feynman diagram process accurate?

Yes, the Feynman diagram process is a highly accurate method for calculating particle interactions in quantum field theory. It has been extensively tested and validated through experiments and has been used to make predictions that have been confirmed by observations.

5. Can the Feynman diagram process be used for all particle interactions?

No, the Feynman diagram process is primarily used for interactions between elementary particles, such as electrons, photons, and quarks. It may not be applicable for more complex interactions, such as those involving nuclear forces or gravity.

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