Hi,
Suppose I have a 1D material of length L, and I want to calculate the spontanious emission rate Γ at ressonance frequeny.
From my understanding, when light passes in a material at ressonance frequency it gets absorved by an electron in the atom, and after a spontaneous emission time tspont...
vanhees71
thank you for the explenation.
I understand the mathematics of it and how to derive it.
What I don't understand is the physical intuition behind the derivietive of G on the surface integral.
G on the volume integral means (as far as I understood) summing up the impulse response of 1...
Hello,
I'm taking a course in electrostatics and electrodynamics.
We learned about finding a potentional using unique Green functions that are dependent of the geometry of the problem. Specificly on a Dirichlet problem we get the solution:
Φ(x)=∫ρ(x')G(x,x')d3x' -...
Homework Statement
What is the lagrangian of a free reletavistic particle in a electro-magnetic field?
And what are the v(t) equations that come from the Euler-Lagrange equations (given A(x) = B0/2 crosProduct x)
(B/2 is at z direction)
Homework EquationsThe Attempt at a Solution
I've got to: L...