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Conformal frames and the validity of Birkhoff's theorem

机译:保形框架和Birkhoff的定理的有效性

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摘要

Birkhoff's theorem is one of the most important statements of Einstein's general relativity, which generally can not be extended to modified theories of gravity. Here we study the validity of the theorem in scalar-tensor theories using a perturbative approach, and compare the results in the so-called Einstein and Jordan frames. The implications of the results question the physical equivalence between both frames, at least in perturbations.
机译:Birkhoff的定理是爱因斯坦一般相对论最重要的陈述之一,通常不能延伸到改变重力的理论。在这里,我们使用扰动方法研究标量词的定理的有效性,并比较所谓的爱因斯坦和乔丹框架的结果。结果的含义质疑两个帧之间的物理等价,至少在扰动中。

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