{"knowledge_schema": {"broad_category": "Physics \u2192 Quantum Field Theory \u2192 Symmetry Breaking", "refinement": "This problem examines the relationship between effective particles and the concept of spontaneously-broken symmetries in various physical systems.", "specific_scope": "The focus is on identifying which of the listed effective particles does not arise from a spontaneously-broken symmetry, considering their physical properties and the contexts in which they appear.", "goal": "Determine which particle among the candidates is not associated with spontaneously-broken symmetry."}, "summary": "This question pertains to the field of quantum field theory and the concept of spontaneously-broken symmetries. It asks which of the given effective particles\u2014Skyrmion, Phonon, Magnon, and Pion\u2014does not arise from a spontaneously-broken symmetry. Understanding the nature of these particles and their origins in physical systems is crucial for answering the question."}