Spontaneous symmetry breaking is a spontaneous process of symmetry breaking it is a property of quantum chromodynamics the quantum field theory describing these interactions and is responsible for the bulk of the mass over 99 of the nucleons and thus of all common matter . Dynamic symmetry breaking in quantum field theory is considered it is shown that there is an essential difference between the dynamics with small m 1 anomalous dimension of the composite operator and that with m 1. They also list dynamical symmetry breaking for global symmetries if the breaking is due to quantum corrections at the level of the effective action the stanford encyclopedia of philosophy also distinguishes global ssb to goldstone and local ssb to higgs dynamical . While spontaneous symmetry breaking usually refers to cases where an elementary scalar field such as phi acquires a vev dynamical symmetry breaking refers to cases where the scalar field that acquires a vev is a composite field. Where m jmje 2io and where 1 ap 2 f328 dynamical symmetry breaking in quantum field theories let us consider in more detail the structure of the ground state jom in the terms of the dynamics of the usual ideal fermi gas
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