一个完全没有离心加速度的奇异时空
A curious spacetime entirely free of centrifugal acceleration
摘要:
在爱因斯坦引力理论中,除了通常的引力势和离心势外,还增加了一个吸引项,把引力势和离心势耦合在一起。有趣的是,我们要问的是,后者是否能完全抵消无处不在的离心斥力,使时空完全摆脱离心加速度。我们在这里提出了这样一个奇怪的时空度规,它产生了一个全球性的类似于应力的$~1/r^2$在AdS时空。
英文摘要:
In the Einstein gravity, besides the usual gravitational and centrifugal potential there is an additional attractive term that couples these two together. It is fun to enquire whether the latter could fully counteract the centrifugal repulsion everywhere making the spacetime completely free of the centrifugal acceleration. We present here such a curious spacetime metric and it produces a global monopole like stresses going as $~1/r^2$ in an AdS spacetime.
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