Validating variational principle for higher order theory of gravity

被引：4
作者：
Ruz, Soumendranath [1 ]
Sarkar, Kaushik [1 ]
Sk, Nayem [1 ]
Sanyal, Abhik Kumar [2 ]
机构：
[1] Univ Kalyani, Dept Phys, Nadia 741235, India
[2] Jangipur Coll, Dept Phys, Murshidabad 742213, India
来源：
MODERN PHYSICS LETTERS A | 2015年 / 30卷 / 24期
关键词：
f(R) gravity; variational principle; Noether symmetry; NOETHER SYMMETRY; GRAVITATIONAL ACTION; QUANTUM COSMOLOGY; TERMS;
D O I：
10.1142/S0217732315501199
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Metric variation of higher order theory of gravity requires fixing of the Ricci scalar in addition to the metric tensor at the boundary. Fixing Ricci scalar at the boundary implies that the classical solutions are fixed once and forever to the de Sitter or antide Sitter (dS/AdS) solutions. Here, we justify such requirement from the standpoint of Noether symmetry.
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页数：10
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