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|Author(s):||J A. Soininen; J J. Rehr; Eric L. Shirley;|
|Title:||Electron Self-Energy Calculation Using a General Multi-Pole Approximation|
|Published:||May 01, 2003|
|Abstract:||We present a method for calculating the inverse of the dielectric matrix in a solid using a Band-Lanczos algorithm. The method produces a multi-pole approximation for the inverse dielectrix matrix with an arbitrary number of poles. We discuss how this approximation can be used to calculate the screened interaction needed for electron self-energy calculations in solids.|
|Citation:||Journal of Physics-Condensed Matter|
|PDF version:||Click here to retrieve PDF version of paper (426KB)|