Symmetry Non-restoration at High Temperature
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چکیده
We discuss the (non)-restoration of global and local symmetries at high temperature. First, we analyze a two-scalar model with Z2×Z2 symmetry using the exact renormalization group. We conclude that inverse symmetry breaking is possible in this kind of models within the perturbative regime. Regarding local symmetries, we consider the SU(2)⊗U(1) gauge symmetry and focus on the case of a strongly interacting scalar sector. Employing a model-independent chiral Lagrangian we find indications of symmetry restoration.
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