[Pw_forum] units of psi in e-ph coupling matrix element

Ajit Vallabhaneni avallabh at purdue.edu
Thu Feb 23 23:08:03 CET 2012


Dr. Paolo,

            Sorry to bother you again on this. I am familiar with the equation (1) in that file. However, it is still not clear to me how does 'g' has the units of energy (eV or Ry). Is the wave function psi considered unitless ? 


Thanks
Ajit



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