Is asymptotically safe inflation eternal?
نویسندگان
چکیده
Recently, based on swampland considerations in string theory, the (no) eternal inflation principle has been put forward. The natural question arises whether similar conditions hold other approaches to quantum gravity. In this article, asymptotic safety hypothesis is considered context of inflation. As exemplary inflationary models SU(N) Yang-Mills Veneziano limit and various RG-improvements gravitational action are studied. existence UV fixed point generically flattens potential our findings suggest no tension between safety, both matter sector contradistinction theory. Moreover, cannot take place range applicability effective field gravity We employ analytical relations for some with single minima, such as Starobinsky inflation, alpha-attractors, or RG-improved verify them massive numerical simulations. validity these constraints also discussed a multi-minima model.
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ژورنال
عنوان ژورنال: Journal of Cosmology and Astroparticle Physics
سال: 2021
ISSN: ['1475-7516', '1475-7508']
DOI: https://doi.org/10.1088/1475-7516/2021/04/076