Dark energy, extra dimensions, and the Swampland

被引：18

作者：

Montefalcone, Gabriele ^{[1
]}

Steinhardt, Paul J. ^{[1
]}

Wesley, Daniel H. ^{[2
]}

机构：

[1] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA

[2] PDT, 1745 Broadway, New York, NY 10019 USA

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2020年 / 2020卷 / 06期

关键词：

Cosmology of Theories beyond the SM; Classical Theories of Gravity; Models of Quantum Gravity;

D O I：

10.1007/JHEP06(2020)091

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Perhaps the greatest challenge for fundamental theories based on compactification from extra dimensions is accommodating a period of accelerated cosmological expansion. Previous studies have identified constraints imposed by the existence of dark energy for two overlapping classes of compactified theories: (1) those in which the higher dimensional picture satisfies certain metric properties selected to reproduce known low energy phenomenology; or (2) those derived from string theory assuming they satisfy the Swampland conjectures. For either class, the analyses showed that dark energy is only possible if it takes the form of quintessence. In this paper, we explore the consequences for theories that belong to both classes and show that the joint constraints are highly restrictive, leaving few options.

引用

页数：14

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