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- Q900634 subject Q7804622.
- Q900634 subject Q8428250.
- Q900634 subject Q8652932.
- Q900634 abstract "In physics, critical phenomena is the collective name associated with thephysics of critical points. Most of them stem from the divergence of the correlation length, but also the dynamics slows down. Critical phenomena include scaling relations among different quantities, power-law divergences of some quantities (such as the magnetic susceptibility in the ferromagnetic phase transition) described by critical exponents, universality, fractal behaviour, ergodicity breaking. Critical phenomena take place in second order phase transition, although not exclusively.The critical behavior is usually different from the mean-field approximation which is valid away from the phase transition, since the latter neglects correlations, which become increasingly important as the system approaches the critical point where the correlation length diverges. Many properties of the critical behavior of a system can be derived in the framework of the renormalization group.In order to explain the physical origin of these phenomena, we shall use the Ising model as a pedagogical example.".
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- Q900634 wikiPageWikiLink Q8428250.
- Q900634 wikiPageWikiLink Q8652932.
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- Q900634 comment "In physics, critical phenomena is the collective name associated with thephysics of critical points. Most of them stem from the divergence of the correlation length, but also the dynamics slows down. Critical phenomena include scaling relations among different quantities, power-law divergences of some quantities (such as the magnetic susceptibility in the ferromagnetic phase transition) described by critical exponents, universality, fractal behaviour, ergodicity breaking.".
- Q900634 label "Critical phenomena".