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Green's Functions and DOS

  1. Oct 19, 2007 #1
    Does anybody know how Green's function can be used to calculate the charge density of state?
  2. jcsd
  3. Oct 19, 2007 #2
    Could you be more specific and post an example?
  4. Oct 20, 2007 #3
    In Phys. Rev. B, 66, 165421 (2002) by Nieminen
    they state that rho = - 1/pi Im(G°), without explanation and in
    Phys. Rev. B 60, Number 4 (1999) also by Nieminen:
    delta rho = -2/pi Im (int (delta G dE))
    There must be a way to derive the density of state by Green's functions.
  5. Oct 21, 2007 #4


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    Science Advisor

    This is really an application of Green' functions to physics. I'm going to move it to a physics area.
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