quantum notation
Only the stroke carries meaning.
A quiet technical plate for particle interactions: straight electron paths, wavy photon propagators, and TeX-seriffed labels suspended in a matte void.
e− line: directional, unfilled
γ line: periodic wave, hairline
vertex: small point, no glow
interaction sketch
renormalized plate
01 electron
Straight hairline with a small direction mark.
02 photon
Wavy propagator, no fill and no bloom.
03 vertex
A point where the notation changes state.