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arXiv 0907.1936gr-qcastro-ph.CO
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塌缩虫洞中的均匀奇点

Homogeneous singularities inside collapsing wormholes

Elena I. Novikova, Igor D. Novikov

摘要:

我们用解析和数值方法分析了具有负能量密度的奇异标量场Psi以及该场Psi与有序磁场H共同作用时虫洞坍缩过程中奇异性的起源。我们在球对称的简化假设下这样做,并且在奇点附近,爱因斯坦方程的解只依赖于一个坐标(齐次近似)。在这些假设的框架内,我们发现了具有正能量密度的普通标量场Φ和有序磁场H的坍缩与奇异标量场Psi和磁场H的坍缩之间的主要区别。后一种情况对于虫洞可能的天体物理表现很重要。

英文摘要:

We analyze analytically and numerically the origin of the singularity in the course of the collapse of a wormhole with the exotic scalar field Psi with negative energy density, and with this field Psi together with the ordered magnetic field H. We do this under the simplifying assumptions of the spherical symmetry and that in the vicinity of the singularity the solution of the Einstein equations depends only on one coordinate (the homogeneous approximation). In the framework of these assumptions we found the principal difference between the case of the collapse of the ordinary scalar field Phi with the positive energy density together with an ordered magnetic field H and the collapse of the exotic scalar field Psi together with the magnetic field H. The later case is important for the possible astrophysical manifestation of the wormholes.

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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