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arXiv 0903.5264hep-thastro-ph.COgr-qcmath-phmath.MP
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Bianchi I度规中的能量破坏和经典稳定性

Null Energy Condition Violation and Classical Stability in the Bianchi I Metric

Irina Ya. Aref'eva, Nikolay V. Bulatov, Liudmila V. Joukovskaya, Sergey Yu. Vernov

摘要:

研究了Bianchi I模型中各向同性宇宙学解的稳定性。我们证明了各向同性的解决方案的稳定性,在Bianchi我度量的一个积极的哈勃参数遵循其稳定性的Friedmann-Robertson-Walker度量。这一结果适用于模型的启发弦场论,违反零能量条件。稳定的各向同性解决方案的例子。我们还考虑了k-本质模型,并分析了$Φ(t)=t$形式解的稳定性。

英文摘要:

The stability of isotropic cosmological solutions in the Bianchi I model is considered. We prove that the stability of isotropic solutions in the Bianchi I metric for a positive Hubble parameter follows from their stability in the Friedmann-Robertson-Walker metric. This result is applied to models inspired by string field theory, which violate the null energy condition. Examples of stable isotropic solutions are presented. We also consider the k-essence model and analyse the stability of solutions of the form $Φ(t)=t$.

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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