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Is empty space 'empty'? Fields extend throughout all space. So photons moving through space 'know' about other fields (like the e⁻ field) This 'knowing' is called field interaction, & the leading order correction to the vacuum in E&M is a virtual electron, anti-electron pairpic.twitter.com/1wFEus8KB0
In Quantum Field Theory, 'classical' empty space is the lowest order term in the expansion of the full vacuum A photon in 'classical' empty space will propagate with no interactions Saying 'empty space is not empty' is just to say that the quantum 'loop' corrections are nonzeropic.twitter.com/iY12RonriR
In Quantum Field Theory, the intermediate particles of a Feynman diagram are referred to as 'virtual' particles A 'Loop' in a Feynman diagram (like the fermion loop shown here) represent purely quantum effects
Thanks to @SILENCEnwp for asking this question on Patreon!https://www.patreon.com/inertialobserver …
Currently working on a Feynman Diagram module for @3blue1brown’s graphics engine
Hope it’ll be useful to some of you!
This is a really nice illustration of an element of Feynman diagrams (also: future crib notes). Are you perhaps planning to do more of the same because I'm not sure there is much like this out there? No pressure!
this animation looks like 3b1b, is it the same software?
Yup! Python
Pascal, I’m trying to reach an audience of people here who are not familiar with instantons
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