Exact renormalization group at finite temperature
Exact renormalization group at finite temperature
Exact renormalization group at finite temperature
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Effective theroy<br />
Dimensional reduction<br />
Integr<strong>at</strong>ion over the hard modes<br />
In leading order<br />
D i = ∂ i − ig E A i<br />
g E ≈ g T<br />
Integr<strong>at</strong>ion over the soft modes<br />
(gT ≤ Λ E ≤ T)<br />
m E ≈ gT<br />
(g 2 T ≤ Λ M ≤ gT)<br />
Non perturb<strong>at</strong>ive contribution<br />
λ E ≈ g 4 T