f(R) gravity wormholes sourced by a phantom scalar field

被引：33

作者：

Karakasis, Thanasis ^{[1
]}

Papantonopoulos, Eleftherios ^{[1
]}

Vlachos, Christoforos ^{[1
]}

机构：

[1] Natl Tech Univ Athens, Phys Div, Zografou Campus, Athens 15780, Greece

来源：

PHYSICAL REVIEW D | 2022年 / 105卷 / 02期

关键词：

THIN-SHELL WORMHOLES; BRANS-DICKE WORMHOLES; ENERGY;

D O I：

10.1103/PhysRevD.105.024006

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We derive an exact wormhole spacetime supported by a phantom scalar field in the context of f(R) gravity theory. Without specifying the form of the f(R) function, the scalar field self-interacts with a mass term potential which is derived from the scalar equation and in the resulting f(R) model the scalar curvature is modified by the presence of the scalar field and it is free of ghosts and avoids the tachyonic instability.

引用

页数：9

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