Diagrammar of physical and fake particles and spectral optical theorem
Abstract We prove spectral optical identities in quantum field theories of physical particles (defined by the Feynman iϵ prescription) and purely virtual particles (defined by the fakeon prescription). The identities are derived by means of purely algebraic operations and hold for every (multi)thres...
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| Formato: | article |
| Lenguaje: | EN |
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SpringerOpen
2021
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/bf39253762d94252a0d3e5cc9805af6a |
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