Question: Explain why these integrals are small when Ej (r) and Ek(r) are far apart. To do this calculate Z k(q; r)[Helec, pr]j (q; r)dq where

Explain why these integrals are small when Ej (r) and Ek(r) are far apart. To do this calculate Z k(q; r)[Helec, pr]j (q; r)dq where pr is the momentum operator

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