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arXiv 0811.0312gr-qc
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Brans-Dicke理论中的极大对称空间与宇宙学常数

Maximally symmetric spaces in Brans-Dicke theory and the cosmological constant

Mikhail N. Smolyakov

摘要:

本文讨论一个玩具模型,其中有效宇宙学常数的值与真空背景解的对称性有关,并由与引力非极小耦合的标量场的模型参数定义。虽然模型中的参数似乎有不切实际的值来解释宇宙学常数的现值,但模型证明了它可能出现的另一种方式。

英文摘要:

In this note we discuss a toy model in which the value of the effective cosmological constant is associated with a symmetry properties of the vacuum background solution and defined by the model parameter associated with a scalar field non-minimally coupled to gravity. Although the parameters in the model seem to have unrealistic values to account for the present value of the cosmological constant, the model demonstrates a possible alternative way it can arise.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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