Recent content by dkin

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    Do Males Spend Too Much Time in Front of the Mirror?

    I go to the gym a good bit so I like to admire myself. No harm done.
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    Engineers: Unhealthy Habits Impact Health & Well-Being

    I am an engineer and I just ate an Indian takeaway, along with soup. Not very healthy. So in my experience you are correct.
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    What software was used to plot this diagram of morse potential

    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.
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    Hamiltonian describing energy transfer to bloch Electron from EM field

    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}...
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    Fourier components of vector potential

    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)...
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    Fourier components of vector potential

    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(...
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    Fourier transform of scattering hamiltonian

    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...
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