[Pw_forum] A question about symmetry
spmmal at gmail.com
Mon Oct 1 04:56:52 CEST 2012
I have a general question about the symmetry in the Quantum espresso
For quantities such as the Hellmann-Feynman forces and the stress tensor,
why do we need to divide they by the total number of symmetry operations.
Dose it mean that any quantity reported in an electronic structure code is
an average value?
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