Abstract
Using the Schwinger-Keldysh-formalism, reformulated in [1] as an effective field theory in Euclidean anti-de Sitter, we evaluate the one-loop cosmological four-point function of a conformally coupled interacting scalar field in de Sitter. Recasting the Witten cosmological correlator as flat space Feynman integrals, we evaluate the one-loop cosmological four-point functions in de Sitter space in terms of single-valued multiple polylogarithms. From it we derive anomalous dimensions and OPE coefficients of the dual conformal field theory at space-like, future infinity. In particular, we find an interesting degeneracy in the anomalous dimensions relating operators of neighboring spins.
| Dokumententyp: | Zeitschriftenartikel |
|---|---|
| Fakultät: | Physik |
| Themengebiete: | 500 Naturwissenschaften und Mathematik > 530 Physik |
| URN: | urn:nbn:de:bvb:19-epub-106889-5 |
| ISSN: | 1029-8479 |
| Sprache: | Englisch |
| Dokumenten ID: | 106889 |
| Datum der Veröffentlichung auf Open Access LMU: | 11. Sep. 2023, 13:44 |
| Letzte Änderungen: | 29. Sep. 2023, 20:44 |
| DFG: | Gefördert durch die Deutsche Forschungsgemeinschaft (DFG) - 491502892 |
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