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Planck 2018 and Brane Inflation Revisited
Renata Kallosh, Andrei Linde, Yusuke Yamada
We revisit phenomenological as well as string-theoretical aspects of D-brane inflation cosmological models. Phenomenologically these models stand out on par with -attractors, as…
4d models of dS uplift in KKLT
Renata Kallosh, Andrei Linde, Evan McDonough +1
It was shown in arXiv:1808.09428 that the modified 4d version of the KKLT model proposed in arXiv:1707.08678 is inconsistent for large values of the parameter advocated in arXi…
de Sitter Vacua with a Nilpotent Superfield
Renata Kallosh, Andrei Linde, Evan McDonough +1
We study the arguments given in [1] which suggest that the uplifting procedure in the KKLT construction is not valid. First we show that the modification of the SUSY breaking secto…
The landscape, the swampland and the era of precision cosmology
Yashar Akrami, Renata Kallosh, Andrei Linde +1
We review the advanced version of the KKLT construction and pure de Sitter supergravity, involving a nilpotent multiplet, with regard to various conjectures that de Sitter st…
Hypernatural inflation
Andrei Linde, Dong-Gang Wang, Yvette Welling +2
We constructed a model of natural inflation in the context of -attractor supergravity, in which both the dilaton field and the axion field are light during inflation, and the in…