Recent content by Echows

I think that you already answered to your first question (i.e. does the scale of the Lagrangian have any absolute meaning) in you next paragraph. That is, the scale indeed plays a role if we have a situation where the total action is sum of two or more actions. But even in that case, what...

Your notation doesn't really make sense. To be precise, kets are vectors in the Hilbert space and bras are their duals (that is, operators that map vector to a real (or complex) number). Their relation to wave functions becomes clear when you expand a ket in terms of states which are eigenstates...

I believe Fortran and C(++) are the most used languages in computational physics research. At least in applications where good performance of the code is essential. The reason for this is mostly because the two languages have a wide variety of libraries available for scientific computing. I...