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arXiv 0904.2828hep-thgr-qc
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5D驻波中的反德西特岛宇宙

Anti-de-Sitter Island-Universes from 5D Standing Waves

Merab Gogberashvili, Douglas Singleton

摘要:

我们在具有鬼标量场的5D时空中构造了简单的驻波解。这些驻波的节点是四维闵可夫斯基时空的“岛”。对于翘曲因子增加(减少)的5D模型,有有限(无限)个节点,因此闵可夫斯基岛宇宙具有不同的参数,如引力和宇宙学常数。这一特征类似于景观模型的假设,景观模型假设了大量具有不同参数的宇宙。这种驻波解也提供了一种新的定域机制--物质场只能驻留在闵可夫斯基“岛”上,在那里背景时空不振荡。

英文摘要:

We construct simple standing wave solutions in a 5D space-time with a ghost scalar field. The nodes of these standing waves are 'islands' of 4D Minkowski space-time. For the 5D model with increasing (decreasing) warp factor there are a finite (infinite) number of nodes and thus Minkowski island-universes having different parameters, such as gravitational and cosmological constants. This feature is similar to the assumptions of the landscape models, which postulate a large number of universes with different parameters. This standing wave solution also provides a new localization mechanism - matter fields can reside only on Minkowski 'islands', where the background space-time does not oscillate.

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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