Nugatory's latest activity
-
Dear Robert, My condolences to you and your family. He was a great contributor to the PF community. We will miss him. I will miss his... -
Nugatory replied to the thread Paul Hinds has passed.Very sorry to hear this - he contributed much over the years and will be missed.
-
Nugatory reacted to JimWhoKnew's post in the thread Graduate Kruskal Coordinates in Schwartzchild metric with
Like.
Of course they are not. That's how you can get the factors right. Hint: use ##~e^{\ln{x}}=x~## in the equation in #7. -
Nugatory reacted to JimWhoKnew's post in the thread Graduate Kruskal Coordinates in Schwartzchild metric with Like.
I lost track. Can you see that after the correction, you have$$\frac{2M}r e^{-r/2M}d\bar{u}d\bar{v}=\frac{2M}r...
-
Nugatory reacted to JimWhoKnew's post in the thread Graduate Kruskal Coordinates in Schwartzchild metric with Like.
Shouldn't it be ##dr^*=dr+dr/(r/2M-1)=dr/(1-2M/r)## ? I didn't read beyond that. I'll do, if necessary, after your reply.
-
Nugatory reacted to JimWhoKnew's post in the thread Undergrad The imaginary part of the wave function with Like.
Introductory textbooks usually deal a lot with time-independent Hamiltonians of the form$$H=\frac{\mathbf{P}^2}{2 m}+V(\mathbf{x})\quad...