Recent content by cheeseits

  1. C

    Commutators on a discrete QM lattice = ?

    Commutators on a discrete QM lattice = ? Please let me know if any of the following is unclear: I was thinking about how you could go about doing QM not in a continuous space but instead on a lattice, take 1D for simplicity. Let's use a finite (not countably infinite) number of positions say...
  2. C

    Index of refraction and planes of oscillating charges

    You say that the formula is valid only for large values of of z. Total field at P: - \frac{q \eta}{2 \epsilon_{o} c} i \omega x_{o} e^{i \omega (t- \frac{z}{c} )} Thanks for the link to the equation tex thingy. Just so you know my source for this equation: On page 283 of Feynman lectures on...
  3. C

    Index of refraction and planes of oscillating charges

    Assume we have a plane of oscillating charges described by x=xoei(omega)t. The total field is given by E=- \frac{\etaq}{2\epsilonc}i\omegaxoei\omega(t-z/c) . (Can someone point me to a website where I can learn to type in these formulas and not not have them suck?) Ignore that weird looking x^o...
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