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advanced_notions:quantum_field_theory:solitons [2018/04/02 15:10] jakobadmin [Why is it interesting?] |
advanced_notions:quantum_field_theory:solitons [2018/05/05 12:38] (current) jakobadmin ↷ Links adapted because of a move operation |
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<tabbox Why is it interesting?> | <tabbox Why is it interesting?> | ||
- | [[advanced_tools:feynman_diagrams|Feynman diagrams]] do not describe everything that can happen in a [[theories:quantum_field_theory|quantum field theory]]. There can be classical solutions of the field equations that describe larger lumps of field excitations that aren't describable by Feynman diagrams. | + | [[advanced_tools:feynman_diagrams|Feynman diagrams]] do not describe everything that can happen in a [[theories:quantum_field_theory:canonical|quantum field theory]]. There can be classical solutions of the field equations that describe larger lumps of field excitations that aren't describable by Feynman diagrams. |
Classical solutions of the field equations with finite energy are called solitons. | Classical solutions of the field equations with finite energy are called solitons. |