In QFT people exchange electrons during touching?

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Philipsmett
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Does in QFT static electricity work classically or is there a more fundamental explanation?
 
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QFT (specifically QED, quantum electrodynamics) is the most fundamental theory regarding the EM force and all effects associated with it. There is nothing more fundamental. QED reduces to classical EM in some situations, and in these situations you can choose to use classical EM if you so choose.

As to your question in the thread title about people exchanging electrons, it's not clear what you mean by this. Electrons are transferred from one person to another if they touch each other and experience a static shock, but this isn't usually regarded as an 'exchange' as far as I know.
 
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Drakkith said:
QFT (specifically QED, quantum electrodynamics) is the most fundamental theory regarding the EM force and all effects associated with it. There is nothing more fundamental. QED reduces to classical EM in some situations, and in these situations you can choose to use classical EM if you so choose.

As to your question in the thread title about people exchanging electrons, it's not clear what you mean by this. Electrons are transferred from one person to another if they touch each other and experience a static shock, but this isn't usually regarded as an 'exchange' as far as I know.
You want to say that in the QFT, the electron are also transfer from one person to another?
 
Philipsmett said:
You want to say that in the QFT, the electron are also transfer from one person to another?

When one person shocks another? Certainly.
 
Philipsmett said:
ou want to say that in the QFT, the electron are also transfer from one person to another?

Things don't happen "in QFT" or "in" any theory. They happen in reality. QFT is a theory that describes what happens using a particular model. For the case you are discussing, that model works out to be equivalent to the classical model of electromagnetism, but that doesn't mean the electron transfer "happens in" either model. It just happens, and the models describe it.
 
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PeterDonis said:
Things don't happen "in QFT" or "in" any theory. They happen in reality. QFT is a theory that describes what happens using a particular model. For the case you are discussing, that model works out to be equivalent to the classical model of electromagnetism, but that doesn't mean the electron transfer "happens in" either model. It just happens, and the models describe it.
Thank you
 
hilbert2 said:
You can't even know if two electrons have been exchanged, because they're indistinguishable particles in QM.
This is true, of course, but in the case of a spark or shock, it seems that charge has been balanced