Landau-Ginzburg model renormalization and critical exponents

2 Landau-Ginzburg model renormalization and critical exponents 

In Chapter 11, we showed that polymer models correspond to field models. 

To determine the critical exponents, it is sufficient to study the properties of an isolated polymer. For this purpose, we can content ourselves with a one field theory this is the Landau-Ginzburg model described in Chapter 11. Incidentally, we may recall that the Landau-Ginzburg model with external magnetic field corresponds to the equilibrium ensembles defined in Chapters 9 and 11 consequently, it can be used to calculate approximately the properties of polymer solutions.18 

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