String Theory Plots: Hans' 3D Modeling & Interacting Strings

[arivero]

Envy of the 3D modeling abilities of Hans, I have tried mine. So, new thread for string related plots. In this post, you can see interacting strings. Really you can not guess if each vertex is a fermion or a boson in a superstring theory; I can not see how to tell it in pictorial way. So even the closed string in the second picture could be a fermion, albeit it is not my intention. To me, the second picture is more as an electron with a photon in an electromagnetic 3-vertex Feynman diagram.

 

[arivero]

And with "chan paton" factors. The colour is intended to represent electric charge. There is another subtle point I do not know how to stress: that they are oriented strings and then an open string always is terminated with a "particle" and a "antiparticle", so that you can not close it into a Klein bottle.

I forget to "draw" the open string three vertex with chan paton factors.