A geometrical upper bound on the inflaton range
A geometrical upper bound on the inflaton range
复制标题
暴胀范围的几何上限
DOI:
10.1007/jhep05(2018)001
复制
发表时间:
2018
影响因子:
5.4
通讯作者:
P. Shukla
中科院分区:
文献类型:
--
作者:
M. Cicoli;David Ciupke;C. Mayrhofer;P. Shukla
A bstractWe argue that in type IIB LVS string models, after including the leading order moduli stabilisation effects, the moduli space for the remaining flat directions is compact due the Calabi-Yau Kähler cone conditions. In cosmological applications, this gives an inflaton field range which is bounded from above, in analogy with recent results from the weak gravity and swampland conjectures. We support our claim by explicitly showing that it holds for all LVS vacua with h1,1 = 3 obtained from 4-dimensional reflexive polytopes. In particular, we first search for all Calabi-Yau threefolds from the Kreuzer-Skarke list with h1,1 = 2, 3 and 4 which allow for LVS vacua, finding several new LVS geometries which were so far unknown. We then focus on the h1,1 = 3 cases and show that the Kähler cones of all toric hypersurface threefolds force the effective 1-dimensional LVS moduli space to be compact. We find that the moduli space size can generically be trans-Planckian only for K3 fibred examples.
影响因子:
5.4
作者:
Ross Altman;J. Gray;Yang-Hui He;Vishnu Jejjala;B. Nelson
通讯作者:
Ross Altman;J. Gray;Yang-Hui He;Vishnu Jejjala;B. Nelson
影响因子:
5
作者:
Altman R
通讯作者:
Altman R
影响因子:
5.4
作者:
Michael Haack with M. Berg;J. U. Kang;S. Sjörs
通讯作者:
S. Sjörs