{"schema":"hottub-news/story/v1","story":"st_2rd7wpd7bedwpzhmwquq","title":"Palatini inflationary (non-)attractors: Universal mapping of observables","title_en":null,"outlets":1,"brief":null,"page":"https://hottub.news/stories/palatini-inflationary-non-attractors-universal-mapping-of-observables-2rd7wpd7be","count":1,"items":[{"id":"n_2rd7wpd7bedwpzhmwquq","seq":608228,"kind":"research","title":"Palatini inflationary (non-)attractors: Universal mapping of observables","url":"https://arxiv.org/abs/2609.20622","summary":"arXiv:2609.20622v2 Announce Type: replace-cross Abstract: We study single-field slow-roll inflation in the context of Palatini gravity for the class of non-minimally coupled $\\xi$-attractors, i.e.,\\ models where the same function $f(\\phi)$ fixes both the non-minimal coupling, $1+\\xi f(\\phi)$, and the inflationary potential, $V(\\phi) = M^4 f(\\phi)^2$. For an arbitrary $f(\\phi)$, the number of $e$-folds is, at leading order, independent of $\\xi$. Thanks to this, we provide an…","published":"2026-09-29T04:00:00Z","seen":"2026-09-29T07:46:41Z","lang":"en","source":{"id":"arxiv-astro-ph","name":"arXiv astro-ph (astrophysics)","domain":"arxiv.org","outlet":{"wikidata":"Q118398","name":"arXiv","type":"website","country":"US","designations":["bibliographic database","disciplinary repository","online database","open science tool","preprint server","website"]}},"via":"arxiv-astro-ph","topics":["space","astrophysics","gr-qc","astro-ph.co","hep-ph"],"authors":["Christian Dioguardi, Francesco Gianesello, Antonio Racioppi"],"entities":[{"id":"Q35865","name":"inflation","type":"event"}],"story":"st_2rd7wpd7bedwpzhmwquq","category":"economy-business","category_p":0.4699999988079071,"category2":"science-technology","sentiment":"neutral","tone":0.07999999821186066,"political":0.07000000029802322}]}