Seven-Disk Manifold, α-attractors and B-modes
Seven-Disk Manifold, α-attractors and B-modes
复制标题
七盘歧管、α 吸引器和 B 模式
DOI:
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发表时间:
2016
期刊:
影响因子:
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通讯作者:
R. Kallosh
中科院分区:
文献类型:
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作者:
S. Ferrara;R. Kallosh
Cosmological α-attractor models in N = 1 supergravity are based on hyperbolic geometry of a Poincare disk with the radius square R2 = 3α. The predictions for the B-modes, r ≈ 3α 4 N2 , depend on moduli space geometry and are robust for a rather general class of potentials. Here we notice that starting with M-theory compactified on a 7-manifold with G2 holonomy, with a special choice of Betti numbers, one can obtain d=4 N = 1 supergravity with rank 7 scalar coset [ SL(2) SO(2) ]7 . In a model where these 7 unit size Poincare disks have identified moduli one finds that 3α = 7. Assuming that the moduli space geometry of the phenomenological models is inherited from this version of M-theory, one would predict r ≈ 10−2 for N = 53 e-foldings. We also describe the related maximal supergravity and M/string theory models leading to preferred values 3α = 1, 2, 3, 4, 5, 6, 7. Sergio.Ferrara@cern.ch, kallosh@stanford.edu ar X iv :1 61 0. 04 16 3v 2 [ he pth ] 2 8 O ct 2 01 6
DOI:
10.2172/1352047
发表时间:
2016-10
期刊:
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影响因子:
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作者:
K. Abazajian;Peter Adshead;Z. Ahmed;S. Allen;D. Alonso;K. Arnold;C. Baccigalupi;J. Bartlett;
通讯作者:
K. Abazajian;Peter Adshead;Z. Ahmed;S. Allen;D. Alonso;K. Arnold;C. Baccigalupi;J. Bartlett;