Convexity of the effective action from functional flows
We show that convexity of the effective action follows from its functional flow equation. Our analysis is based on a new, spectral representation. The results are relevant for the study of physical instabilities. We also derive constraints for convexity-preserving regulators within general truncatio...
Guardado en:
| Autores principales: | , , |
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| Formato: | Article (Journal) Chapter/Article |
| Lenguaje: | inglés |
| Publicado: |
2006
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| In: |
Arxiv
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| Acceso en línea: | Verlag, kostenfrei, Volltext: http://arxiv.org/abs/hep-th/0602140
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| Notas de Autor: | Daniel F. Litim, Jan M. Pawlowski, and Lautaro Vergara |
| Sumario: | We show that convexity of the effective action follows from its functional flow equation. Our analysis is based on a new, spectral representation. The results are relevant for the study of physical instabilities. We also derive constraints for convexity-preserving regulators within general truncation schemes including proper-time flows, and bounds for infrared anomalous dimensions of propagators. |
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| Notas: | Gesehen am 06.12.2017 |
| Descripción Física: | Online Resource |