Scivillage.com Casual Discussion Science Forum

FERMILAB
https://youtu.be/ayQhNLqbTFk

VIDEO EXCERPTS: But the real bottom line is that the Casimir effect, and the accurate prediction of a zero point one percent shift in the magnetic properties of muons, are experimental proof that virtual particles are a real thing. But if they’re real, what are they?

[...] The name for the most modern theories of the quantum realm is called “quantum field theory,” or QFT. There are many examples of QFTs.

[...] The gist of all these QFTs is that empty space isn’t actually empty. It’s filled with fields. It has an electron field, a muon field, various quark fields, a photon field, etc. In fact, there is a field for all of the known particles of the Standard Model.

[...] Electrons are specific vibrations of the electron field. Antimatter electrons are slightly different vibrations of the same field.

Now we’re getting to the main topic of this video: virtual particles.

A quantum field can vibrate in more ways than the specific one that makes real particles. And, when it vibrates in not quite the right way to make an electron, then that’s a virtual electron...

[...] The same thing works with the photon field. Vibrations of the photon field make photons. ... A very specific vibration of the up quark field makes up quarks, while other vibrations make virtual up quarks.

It turns out that the various fields can interact with one another, but that’s the topic of another video...

[...] The bottom line is that quantum field theory postulates that space is full of a number of fields, each of which are vibrating in ways that don’t create real particles, but the ensemble of vibrations are all the virtual particles that exist in that space. They are the white noise of the universe -- a quantum hum, if you will.

That’s it. Particles are special vibrations of fields, and weird vibrations are virtual particles. That’s the gist of quantum field theory and how it explains the world around us.

What are virtual particles? (Fermilab) ... https://youtu.be/ayQhNLqbTFk

Quote:A quantum field can vibrate in more ways than the specific one that makes real particles. And, when it vibrates in not quite the right way to make an electron, then that’s a virtual electron...

I just feel this conceals more than it reveals. If an electron isn't 'local' and the field isn't 'local' and the vibration isn't 'local' .. it's an "it is what it is" which has very little descriptive power.

Yeah, this explanation isn't very enlightening. Much better to keep describing them as particles and explain zero-point energy, the uncertainty principle, etc..

(Aug 26, 2025 02:21 PM)confused2 Wrote: [ -> ]

Quote:A quantum field can vibrate in more ways than the specific one that makes real particles. And, when it vibrates in not quite the right way to make an electron, then that’s a virtual electron...

I just feel this conceals more than it reveals. If an electron isn't 'local' and the field isn't 'local' and the vibration isn't 'local' .. it's an "it is what it is" which has very little descriptive power.

But it does finally clarify that a "virtual electron" is purely called that because the effects are the result of other vibrations in the electron field (or whichever one of the 24 quantum fields is contingently responsible, like virtual photons enabling the attractive force of a magnet).

Whereas the local/non-local issues and entanglement and tunneling and wave function collapse (etc) are just the usual commonsense defying furniture of QM. The topic is about VPs, not that specifically. VPs were not submitted decades ago as a solution to quantum weirdness.

Seen post from CC. Thinking.
Vibrations .. string theory or something else.
I asked my favourite AI

Quote:..electrons as 'vibrations' in an electron field and string theory with its 'strings'...yeah, they’re related in the sense that both involve vibrations. But, you know, string theory is like the next level of complexity—different orders of magnitude, if you will. So, *unhelpful comment deleted*