Part I: Physical Chemistry. Part II: Solid State Physics
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(2.12) we find *p, *)-Jay, dyer(h)(py, psy)" -lys, ly:Ali-'y." -jay, dyer(h)(py, psy) (20.0 %) + 6(q2-q1 +}(y2+ y))6(q1-q2+}(y1+ y2)] = #4. Th 6(q – q2)6(p1-p2). (2.126) The corresponding result for fermions has a minus sign in front of the second term.