Wednesday, May 9, 2012

1205.1122 (Koushik Ray et al.)

An Algebraic Geometry Method for Calculating DOS for 2D tight binding
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Koushik Ray, Siddhartha Sen
An algebraic geometry method is used to calculate the moments of the electron density of states as a function of the energy for lattices in the tight binding approximation. Interpreting the moments as the Mellin transform of the density allows writing down a formula for the density as an inverse Mellin transform. The method is illustrated by working out the density function for the two-dimensional square and honeycomb lattices.
View original: http://arxiv.org/abs/1205.1122

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