arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1105.3010hep-thastro-ph.COgr-qc
收藏

大质量引力中黑洞的有限能量

Finite Energy of Black Holes in Massive Gravity

Denis Comelli, Marco Crisostomi, Fabrizio Nesti, Luigi Pilo

摘要:

在GR中,自引力物体的静态引力势在大距离处为1/r,任何较慢的下降都会导致无穷大的能量。我们证明了在一类四维质量引力理论中存在具有有限总能量的球对称解,其渐近行为慢于1/r,一般形式为$r^γ$ .这表明具有非标准渐近性的构形很可能是物理的。这种效应是由于一个只与引力耦合的额外场,它允许物质产生的静电势发生变化,同时平衡了明显无限的能量预算。

英文摘要:

In GR the static gravitational potential of a self-gravitating body goes as 1/r at large distances and any slower decrease leads to infinity energy. We show that in a class of four-dimensional massive gravity theories there exists spherically symmetric solutions with finite total energy, featuring an asymptotic behavior slower than 1/r and generically of the form $r^γ$. This suggests that configurations with nonstandard asymptotics may well turn out to be physical. The effect is due to an extra field coupled only gravitationally, which allows for modifications of the static potential generated by matter, while counterbalancing the apparently infinite energy budget.

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。

↑