Dear users and developers,
The e-ph coupling matrix element (g) has the units of 'energy (eV or
Ry)' in the literature. But from the expression for calculating the e-ph
coupling matrix element, i obtained the unit of 'energy per unit volume' for g
assuming the term psi has the unit of 1/sqrt(volume). (since psi^2 ~
probability density from quantum mechanics).
I am confused about this. Do i have to multiply it with volume or is psi
assumed to be dimensionless?
Can someone please correct me where i was wrong?
Thanks
Ajit
