Renormalization group fixed points of general n-vector models

Michel, Louis



Abstract : We make a general study of symmetry and stability of the fixed points of the quartic Hamiltonian
of an n-component field (or order parameter} for n&4. Simple proofs of known results are given.
Among new results, we shou that when it exists the stable fixed point is unique; we give some precision
on its symmetry and on its attractor basin.




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MICHEL, “Renormalization group fixed points of general n-vector models,” Archives de l'IHES, consulté le 20 mai 2024,