Nonperturbative de Sitter vacua via α′ corrections

被引：41

作者：

Hohm, Olaf ^{[1
]}

Zwiebach, Barton ^{[2
]}

机构：

[1] Humboldt Univ, Inst Phys, Zum Grossen Windkanal 6, D-12489 Berlin, Germany

[2] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS D | 2019年 / 28卷 / 14期

关键词：

String duality; de Sitter vacua; alpha ' corrections; SCALE FACTOR DUALITY;

D O I：

10.1142/S0218271819430028

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The higher-derivative alpha' corrections consistent with O(d, d) duality invariance can be completely classified for cosmological, purely time-dependent backgrounds. This result is used to show that there are duality invariant theories featuring string-frame de Sitter vacua as solutions that are nonperturbative in alpha', thus suggesting that classical string theory may realize de Sitter solutions in an unexpected fashion.

引用

页数：7

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