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2001
Most of the experiments in the neighborhood of critical points indicate that critical exponents assume the same universal values, far from the predictions of the “classical theories” (as represented by Landau’s phenomenology, for example). We now recognize that the universal values of the critical exponents depend on a just few ingredients: (i ...
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Most of the experiments in the neighborhood of critical points indicate that critical exponents assume the same universal values, far from the predictions of the “classical theories” (as represented by Landau’s phenomenology, for example). We now recognize that the universal values of the critical exponents depend on a just few ingredients: (i ...
openaire +2 more sources
2015
In the previous chapter, we have discussed the formalism of statistical physics. A big help for us was the Ising model which provided the very intuitive understanding for all the concepts considered.
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In the previous chapter, we have discussed the formalism of statistical physics. A big help for us was the Ising model which provided the very intuitive understanding for all the concepts considered.
openaire +2 more sources
2015
Cooperative phenomena are introduced via the simple Ising model in which spins having two states occupy a lattice and interact with nearest neighbors and an applied magnetic field. We study this model in the mean field approximation. Correlations among spin states are neglected, so each spin interacts with a self-consistent mean field.
openaire +2 more sources
Cooperative phenomena are introduced via the simple Ising model in which spins having two states occupy a lattice and interact with nearest neighbors and an applied magnetic field. We study this model in the mean field approximation. Correlations among spin states are neglected, so each spin interacts with a self-consistent mean field.
openaire +2 more sources