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FRW and domain walls in higher spin gravity

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dc.contributor.author Aros, R.
dc.contributor.author Iazeolla, C.
dc.contributor.author Noreña, J.
dc.contributor.author Sezgin, E.
dc.contributor.author Sundell, P.
dc.contributor.author Yin, Y.
dc.date.accessioned 2018-09-25T14:42:33Z
dc.date.available 2018-09-25T14:42:33Z
dc.date.issued 2018-03
dc.identifier.citation Journal of High Energy Physics, 2018(3), art. no. 153. es_ES
dc.identifier.issn 1126-6708
dc.identifier.other DOI: 10.1007/JHEP03(2018)153
dc.identifier.uri http://repositorio.unab.cl/xmlui/handle/ria/7056
dc.description Indexación: Scopus. es_ES
dc.description.abstract We present exact solutions to Vasiliev’s bosonic higher spin gravity equations in four dimensions with positive and negative cosmological constant that admit an interpretation in terms of domain walls, quasi-instantons and Friedman-Robertson-Walker (FRW) backgrounds. Their isometry algebras are infinite dimensional higher-spin extensions of spacetime isometries generated by six Killing vectors. The solutions presented are obtained by using a method of holomorphic factorization in noncommutative twistor space and gauge functions. In interpreting the solutions in terms of Fronsdal-type fields in space-time, a field-dependent higher spin transformation is required, which is implemented at leading order. To this order, the scalar field solves Klein-Gordon equation with conformal mass in (A)dS4. We interpret the FRW solution with de Sitter asymptotics in the context of inflationary cosmology and we expect that the domain wall and FRW solutions are associated with spontaneously broken scaling symmetries in their holographic description. We observe that the factorization method provides a convenient framework for setting up a perturbation theory around the exact solutions, and we propose that the nonlinear completion of particle excitations over FRW and domain wall solutions requires black hole-like states. © 2018, The Author(s). es_ES
dc.description.uri https://link.springer.com/article/10.1007%2FJHEP03%282018%29153
dc.language.iso en es_ES
dc.publisher Springer Verlag es_ES
dc.subject Cosmology of Theories beyond the SM es_ES
dc.subject Higher Spin Gravity es_ES
dc.subject Higher Spin Symmetry es_ES
dc.title FRW and domain walls in higher spin gravity es_ES
dc.type Article es_ES

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