All the Wrong Fuses and Splices
There are a few different conventions for electromagnetism, and keeping them straight can be a headache.
Here I collect the differences between the particle physics convention
and the… other convention
The particle physics convention is the same as SI if you replace , , and , so you can use any result in e.g. Griffiths easily.
| | | |
---|---|---|---|
Units | “Particle Physics” | “Gaussian” | |
“Rationalized” | |||
Lagrangian Density | | | |
Hamiltonian Density | | | |
Maxwell’s Equations | | | |
Fine Structure Constant | | | |
Flux quantum | | | |
Coulomb’s Law | | | |
Biot-Savart Law | | | |
You can see it’s just a matter of keeping track of where the goes, which is what makes it so tough to remember.