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Continuum effective field theories, gravity, and holography

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Autor(es):
Fichet, Sylvain ; Megias, Eugenio ; Quiros, Mariano
Número total de Autores: 3
Tipo de documento: Artigo Científico
Fonte: PHYSICAL REVIEW D; v. 107, n. 9, p. 27-pg., 2023-05-19.
Resumo

We examine effective field theories (EFTs) with a continuum sector in the presence of gravity. We first explain, via arguments based on central charge and species scale, that an EFT with a free continuum cannot consistently couple to standard (i.e., 4D Einstein) gravity. It follows that EFTs with a free or nearly free continuum must have either a finite number of degrees of freedom or nonstandard gravity. The latter claim is realized for holographically defined continuum models. We demonstrate this by computing the deviations from standard gravity in a specific 5D scalar-gravity system that gives rise to a gapped continuum (i.e., the linear dilaton background). We find an R-2 deviation from the Newtonian potential. At finite temperature, we find an energy density with matterlike behavior in the brane Friedmann equation, holographically induced from the bulk geometry. Thus, remarkably, a braneworld living in the linear dilaton background automatically contains dark matter. We also present a slightly more evolved asymptotically AdS linear dilaton model, for which the deviations exhibit a transition between AdS and linear dilaton behaviors. (AU)

Processo FAPESP: 18/11721-4 - Física das Partículas Além do Modelo Padrão: Estruturas curvadas, Camaleões e Holografia
Beneficiário:Sylvain Pierre Joseph Fichet
Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado
Processo FAPESP: 16/01343-7 - ICTP Instituto Sul-Americano para Física Fundamental: um centro regional para física teórica
Beneficiário:Nathan Jacob Berkovits
Modalidade de apoio: Auxílio à Pesquisa - Projetos Especiais
Processo FAPESP: 14/21477-2 - Física de partículas na escala electro-fraca: modelos e interpretações
Beneficiário:Sylvain Pierre Joseph Fichet
Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado