[Pw_forum] Query on "e-ph interaction coefficients

[Paolo Giannozzi]

On Nov 28, 2011, at 1:19 , Ajit Vallabhaneni wrote:

> what does the term 1 modes  and 2 modes stand for ?

one-dimensional, two dimensional irreducible representations.
Do you know group theory?

P.
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Paolo Giannozzi, Dept of Chemistry&Physics&Environment,
Univ. Udine, via delle Scienze 208, 33100 Udine, Italy
Phone +39-0432-558216, fax +39-0432-558222