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Results tagged with mean-field-theory
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user 171182
The study of systems of many interacting components by replacing the actual interaction between the components with an effective "averaged" one.
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Calculation of fluctuation corrections to the saddle point approximation
From Statistical physics of fields by Mehran Kardar page 45 section 3.6
[...] the partition function including small fluctuations is
$$\begin{align}
Z \approx e^{-V\left(t/2 \cdot \overline m^2 …
- 483
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Correlation function calculation
From Mehran Kardar's Statistical Physics of Fields page 38 section 3.2
[...] $I_d(x,\xi)$ is the solution to the following differential equation
$ \nabla^2 I_d(x) = \delta^d(x)+ I_d(x)/\xi^2$
…
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