Stable wormholes in scalar-tensor theories

被引：24

作者：

Franciolini, Gabriele ^{[1
,2
]}

Hui, Lam ^{[3
]}

Penco, Riccardo ^{[4
]}

Santoni, Luca ^{[3
]}

Trincherini, Enrico ^{[5
,6
]}

机构：

[1] Dept Theoret Phys, 24 Quai E Ansermet, CH-1211 Geneva 4, Switzerland

[2] CAP, 24 Quai E Ansermet, CH-1211 Geneva 4, Switzerland

[3] Columbia Univ, Ctr Theoret Phys, Dept Phys, New York, NY 10027 USA

[4] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA

[5] Scuola Normale Super Pisa, Piazza Cavalieri 7, I-56126 Pisa, Italy

[6] INFN, Sez Pisa, I-56100 Pisa, Italy

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2019年 / 2019卷 / 01期

关键词：

Classical Theories of Gravity; Effective Field Theories; Spacetime Singularities;

D O I：

10.1007/JHEP01(2019)221

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：

We reconsider the issue of whether scalar-tensor theories can admit stable wormhole configurations supported by a non-trivial radial profile for the scalar field. Using a recently proposed effective theory for perturbations around static, spherically symmetric backgrounds, we show that scalar-tensor theories of beyond Horndeski type can have wormhole solutions that are free of ghost and gradient instabilities. Such solutions are instead forbidden within the more restrictive Horndeski class of theories.

引用

页数：17

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