Sudden Brans-Dicke singularities

被引：9
作者：
Barrow, John D. [1 ]
机构：
[1] Univ Cambridge, DAMTP, Ctr Math Sci, Wilberforce Rd, Cambridge CB3 0WA, England
来源：
CLASSICAL AND QUANTUM GRAVITY | 2020年 / 37卷 / 06期
基金：
英国科学技术设施理事会;
关键词：
cosmology; scalar-tensor gravity; singularities;
D O I：
10.1088/1361-6382/ab7074
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We show that cosmological sudden singularities that respect the energy conditions can occur at finite times in Brans-Dicke and more general scalar-tensor theories of gravity. We construct these explicitly in the Friedmann universes. Higher-order versions of these singularities are also possible, including those that arise with when scalar fields have a self-interaction potential of power-law form.
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页数：7
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