- #1
actionintegral
- 305
- 5
I am trying to get a handle on four-vectors. I see that there is a thing called a four-potential, a four-gradient, and a four momentum.
Is it reasonable to ask if the negative four-gradient of the four-potential is equal to the time derivative of the four-momentum?
Is it reasonable to ask if the negative four-gradient of the four-potential is equal to the time derivative of the four-momentum?