Planck 2018 and brane inflation revisited

Renata Kallosh; Andrei Linde; Yusuke Yamada

doi:10.1007/JHEP01(2019)008

Planck 2018 and brane inflation revisited

Renata Kallosh, Andrei Linde, Yusuke Yamada^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

We revisit phenomenological as well as string-theoretical aspects of D-brane inflation cosmological models. Phenomenologically these models stand out on par with α-attractors, as models with Planck-compatible values of n_s, moving down to the sweet spot in the data with decreasing value of r. On the formal side we present a new supersymmetric version of these models in the context of de Sitter supergravity with a nilpotent multiplet and volume modulus stabilization. The geometry of the nilpotent multiplet is evaluated in the framework of string theory.

Original language	English
Article number	8
Journal	Journal of High Energy Physics
Volume	2019
Issue number	1
DOIs	https://doi.org/10.1007/JHEP01(2019)008
Publication status	Published - 2019 Jan 1
Externally published	Yes

Keywords

Cosmology of Theories beyond the SM
D-branes
Supergravity Models

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1007/JHEP01(2019)008

Cite this

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title = "Planck 2018 and brane inflation revisited",

abstract = "We revisit phenomenological as well as string-theoretical aspects of D-brane inflation cosmological models. Phenomenologically these models stand out on par with α-attractors, as models with Planck-compatible values of ns, moving down to the sweet spot in the data with decreasing value of r. On the formal side we present a new supersymmetric version of these models in the context of de Sitter supergravity with a nilpotent multiplet and volume modulus stabilization. The geometry of the nilpotent multiplet is evaluated in the framework of string theory.",

keywords = "Cosmology of Theories beyond the SM, D-branes, Supergravity Models",

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AU - Yamada, Yusuke

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N2 - We revisit phenomenological as well as string-theoretical aspects of D-brane inflation cosmological models. Phenomenologically these models stand out on par with α-attractors, as models with Planck-compatible values of ns, moving down to the sweet spot in the data with decreasing value of r. On the formal side we present a new supersymmetric version of these models in the context of de Sitter supergravity with a nilpotent multiplet and volume modulus stabilization. The geometry of the nilpotent multiplet is evaluated in the framework of string theory.

AB - We revisit phenomenological as well as string-theoretical aspects of D-brane inflation cosmological models. Phenomenologically these models stand out on par with α-attractors, as models with Planck-compatible values of ns, moving down to the sweet spot in the data with decreasing value of r. On the formal side we present a new supersymmetric version of these models in the context of de Sitter supergravity with a nilpotent multiplet and volume modulus stabilization. The geometry of the nilpotent multiplet is evaluated in the framework of string theory.

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Planck 2018 and brane inflation revisited

Abstract

Keywords

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