Weak field limit and gravitational waves in f(T, B) teleparallel gravity

被引：63

作者：

Capozziello, Salvatore ^{[1
,2
,3
,4
]}

Capriolo, Maurizio ^{[5
]}

Caso, Loredana ^{[5
]}

机构：

[1] Univ Napoli Federico II, Dipartimento Fis E Pancini, Compl Univ Monte S Angelo,Edificio G,Via Cinthi, I-80126 Naples, Italy

[2] INFN Sez Napoli, Compl Univ Monte S Angelo,Edificio G,Via Cinthi, I-80126 Naples, Italy

[3] Gran Sasso Sci Inst, Via F Crispi 7, I-67100 Laquila, Italy

[4] Tomsk State Univ Control Syst & Radioelect TUSUR, Lab Theoret Cosmol, Tomsk 634050, Russia

[5] Univ Salerno, Dipartimento Matemat, Via Giovanni Paolo II 132, I-84084 Fisciano, SA, Italy

来源：

EUROPEAN PHYSICAL JOURNAL C | 2020年 / 80卷 / 02期

关键词：

POLARIZATION; MODES; F(R); TOOL;

D O I：

10.1140/epjc/s10052-020-7737-9

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 derive the gravitational waves for f gravity which is an extension of teleparallel gravity and demonstrate that it is equivalent to f(R) gravity by linearized the field equations in the weak field limit approximation. f(T, B) gravity shows three polarizations: the two standard of general relativity, plus and cross, which are purely transverse with two-helicity, massless tensor polarization modes, and an additional massive scalar mode with zero-helicity. The last one is a mix of longitudinal and transverse breathing scalar polarization modes. The boundary term B excites the extra scalar polarization and the mass of scalar field breaks the symmetry of the TT gauge by adding a new degree of freedom, namely a single mixed scalar polarization.

引用

页数：11

共 50 条

[1] Weak field limit and gravitational waves in f(T, B) teleparallel gravity
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[J]. The European Physical Journal C, 2020, 80
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