IIB String Theory and Sequestered Inflation
IIB String Theory and Sequestered Inflation
复制标题
IIB 弦理论和隔离通胀
DOI:
10.1002/prop.202100127
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Yamada, Yusuke
中科院分区:
文献类型:
--
作者:
Kallosh, Renata;Linde, Andrei;Wrase, Timm;Yamada, Yusuke
We develop sequestered inflation models, where inflation occurs along flat directions in supergravity models derived from type IIB string theory. It is compactified on a orientifold with generalized fluxes and O3/O7‐planes. At Step I, we use flux potentials which 1) satisfy tadpole cancellation conditions and 2) have supersymmetric Minkowski vacua with flat direction(s). The 7 moduli are split into heavy and massless Goldstone multiplets. At Step II we add a nilpotent multiplet and uplift the flat direction(s) of the type IIB string theory to phenomenological inflationary plateau potentials: α‐attractors with 7 discrete values . Their cosmological predictions are determined by the hyperbolic geometry inherited from string theory. The masses of the heavy fields and the volume of the extra dimensions change during inflation, but this does not affect the inflationary dynamics.
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