advanced_notions:quantum_field_theory:solitons
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advanced_notions:quantum_field_theory:solitons [2018/03/28 08:53] 207.46.13.214 ↷ Links adapted because of a move operation |
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. | ||
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| In addition, there is an [[http://www.pbs.org/wgbh/nova/blogs/physics/2011/12/beautiful-losers-kelvins-vortex-atoms/|old dream]] that all elementary particles could be explained as topological solitons. (There are lots of problems with this idea, but at least, [[https://plus.google.com/+UrsSchreiber/posts/Z2LfHsyxgR8|instantons come somewhat close]].) | In addition, there is an [[http://www.pbs.org/wgbh/nova/blogs/physics/2011/12/beautiful-losers-kelvins-vortex-atoms/|old dream]] that all elementary particles could be explained as topological solitons. (There are lots of problems with this idea, but at least, [[https://plus.google.com/+UrsSchreiber/posts/Z2LfHsyxgR8|instantons come somewhat close]].) | ||
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| + | While solitons are rare in particle physics, they are found frequently in condensed matter physics. | ||
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advanced_notions/quantum_field_theory/solitons.1522220026.txt.gz · Last modified: 2018/03/28 06:53 (external edit)
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