Fourth-order gravity and experimental constraints on Eddington parameters

被引：59
作者：
Capozziello, S.
Stabile, A.
Troisi, A.
机构：
[1] Univ Naples Federico II, Dipartimento Sci Fis, I-80121 Naples, Italy
[2] Ist Nazl Fis Nucl, Sez Napoli, I-80121 Naples, Italy
[3] Univ Salerno, Dipartimento Fis ER Caianiello, I-84081 Baronissi, Italy
[4] Ist Nazl Fis Nucl, Sez Napoli, Grp Coll Salerno, I-84081 Baronissi, Italy
来源：
MODERN PHYSICS LETTERS A | 2006年 / 21卷 / 30期
关键词：
extended theories of gravity; PPN limit; experimental tests of general relativity;
D O I：
10.1142/S0217732306021633
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
PPN-limit of alternative theories of gravity represents a still controversial matter of debate and no definitive answer has been provided, up to now, about this issue. By using the definition of the PPN-parameters gamma and beta in terms of f(R) theories of gravity, we show that a family of third-order polynomial theories, in the Ricci scalar R, turns out to be compatible with the PPN-limit and the deviation from General Relativity, theoretically predicted, can agree with experimental data.
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收藏
页码：2291 / 2301
页数：11
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