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Vaidya geometries and scalar fields with null gradients
Since, in Einstein gravity, a massless scalar field with lightlike gradient behaves as a null dust, one could expect that it can act as the matter source of Vaidya geometries. We show that this is impossible because the Klein–Gordon equation forces the null geodesic congruence tangent to the scalar...
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| Publicat a: | Eur Phys J C Part Fields |
|---|---|
| Autors principals: | , , |
| Format: | Artigo |
| Idioma: | Inglês |
| Publicat: |
Springer Berlin Heidelberg
2021
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| Matèries: | |
| Accés en línia: | https://ncbi.nlm.nih.gov/pmc/articles/PMC7976656/ https://ncbi.nlm.nih.gov/pubmed/33828412 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1140/epjc/s10052-021-09040-9 |
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