Soft photon theorem in the small negative cosmological constant limit
| Autor: | Nabamita Banerjee, Karan Fernandes, Arpita Mitra |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
High Energy Physics - Theory
Physics Nuclear and High Energy Physics Soft photon Spacetime FOS: Physical sciences Cosmological constant QC770-798 Gauge (firearms) High Energy Physics - Theory (hep-th) Gauge Symmetry Nuclear and particle physics. Atomic energy. Radioactivity Limit (mathematics) Equivalence (measure theory) Classical Theories of Gravity Mathematical physics Asymptotically flat spacetime Gauge symmetry |
| Zdroj: | Journal of High Energy Physics Journal of High Energy Physics, Vol 2021, Iss 8, Pp 1-38 (2021) |
| Popis: | We study the effect of electromagnetic interactions on the classical soft theorems on an asymptotically AdS background in 4 spacetime dimensions, in the limit of a small cosmological constant or equivalently a large AdS radius $l$. This identifies $1/l^2$ perturbative corrections to the known asymptotically flat spacetime leading and subleading soft factors. Our analysis is only valid to leading order in $1/l^2$. The leading soft factor can be expected to be universal and holds beyond tree level. This allows us to derive a $1/l^2$ corrected Ward identity, following the known equivalence between large gauge Ward identities and soft theorems in asymptotically flat spacetimes. Comment: 41 pages, some parts of the draft (Introduction, Section 6, Conclusion) are revised, 1 figure and 2 new equations are included |
| Databáze: | OpenAIRE |
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