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A. Zee, Quantum Field Theory in a Nutshell
· Problem III.7.2
Field Theory Redux
Physics — QFT
Problem
Study the modified Coulomb's law as determined by the Fourier integral
∫
d
3
q
{
1
/
q
2
[
1
+
e
2
Π
(
q
2
)
]
}
e
i
q
⃗
⋅
r
⃗
\int d^3q\{1/q^2[1 + e^2\Pi(q^2)]\}e^{i\vec{q}\cdot\vec{r}}
∫
d
3
q
{
1/
q
2
[
1
+
e
2
Π
(
q
2
)]}
e
i
q
⋅
r
.
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