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arXiv 0809.4384hep-thgr-qc
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引力宇宙弦的Bogomol'nyi界

Bogomol'nyi Bounds for Gravitational Cosmic Strings

Anne-Christine Davis, Senthooran Rajamanoharan

摘要:

本文提出了一种新的方法,用于寻找引力场理论中拓扑宇宙弦解的能量下界。这种新方法产生的边界是有效的解决方案的整个空间,不像传统的方法,其中得到的边界只适用于圆柱对称的解决方案。这种方法被证明是一个推广的著名的Bogomol'nyi程序的非引力理论,因此,它可以用来找到引力Bogomol'nyi边界的模型,无论传统的Bogomol'nyi程序可以应用于非引力的限制。此外,这种方法产生的Bogomol'nyi方程不排除存在非对称的有界饱和解。

英文摘要:

We present a new method for finding lower bounds on the energy of topological cosmic string solutions in gravitational field theories. This new method produces bounds that are valid over the entire space of solutions, unlike the traditional approach, where the bounds obtained are only valid for cylindrically symmetric solutions. This method is shown to be a generalisation of the well-known Bogomol'nyi procedure for non-gravitational theories and as such, it can be used to find gravitational Bogomol'nyi bounds for models wherever the traditional Bogomol'nyi procedure can be applied in the non-gravitational limit. Furthermore, this method yields Bogomol'nyi equations that do not rule out the existence of asymmetric bound-saturating solutions.

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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