A no-go theorem for polytropic spheres in Palatini f(R) gravity
A no-go theorem for polytropic spheres in Palatini f(R) gravity
复制标题
帕拉蒂尼 f(R) 引力中多变球体的不可行定理
DOI：
10.1088/0264-9381/25/6/062001
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发表时间：
2007
影响因子：
3.5
通讯作者：
J. Miller
中科院分区：
文献类型：
--
作者：
E. Barausse;T. Sotiriou;J. Miller
研究了Palatini f（R）引力中的非真空静态球对称解。它表明，对于一般的选择f（R），有常用的状态方程，没有令人满意的物理解的场方程可以在这个框架内找到，除了在广义相对论的特殊情况下，铸造怀疑是否Palatini f（R）引力可以被认为是可行的替代广义相对论。
Non-vacuum static spherically symmetric solutions in Palatini f(R) gravity are examined. It is shown that for generic choices of f(R), there are commonly used equations of state for which no satisfactory physical solution of the field equations can be found within this framework, apart from in the special case of general relativity, casting doubt on whether Palatini f(R) gravity can be considered as giving viable alternatives to general relativity.