Recent content by dkin

I go to the gym a good bit so I like to admire myself. No harm done.

I am an engineer and I just ate an Indian takeaway, along with soup. Not very healthy. So in my experience you are correct.

Hi all, I recently saw a very nice diagram of the morse potential on wikipedia I am curious if anyone has any suggestions as to how this diagram was made? What software package was used? In particular how the actual morse curve was plotted.

Hi all, I've a hamiltonian that describes the coupling of electrons in a crystal (bloch electrons) to an EM field described by a vector potential A \begin{equation} \mathscr{H} = \frac{e}{mc}\left[\mathbf{p}(-\mathbf{k}) \cdot \mathbf{A}(\mathbf{k}, \omega)\right] \end{equation}...

Thanks for the reply, I think the Fourier coefficients will be complex regardless as the \mathbf{e}^{(1)}(\mathbf{k}) and \mathbf{e}^{(-1)}(\mathbf{k}) vectors are complex therefore \mathbf{e}^{(1)}(\mathbf{k}) a^{(1)}_\mathbf{k}(t) should be complex regardless of whether a^{(1)}_\mathbf{k}(t)...

Hi all, I was reading the http://en.wikipedia.org/wiki/Quantization_of_the_electromagnetic_field#Electromagnetic_field_and_vector_potential" and I am a little bit confused. In this equation defining the vector potential \mathbf{A}(\mathbf{r}, t) = \sum_\mathbf{k}\sum_{\mu=-1,1} \left(...

Hey, I am looking at the coupling hamiltonian for electrons in an EM field. In particular I'm interested in the inelastic scattering (this isn't the dominant part for inelastic scattering but it's confusing me). The part of the hamiltonian in the time/space domain that I'm interested in is...