Null energy condition violation and classical stability in the Bianchi I metric

被引：23
作者：
Aref'eva, I. Ya. [1 ]
Bulatov, N. V. [2 ]
Joukovskaya, L. V. [3 ]
Vernov, S. Yu. [4 ]
机构：
[1] Russian Acad Sci, VA Steklov Math Inst, Moscow 119991, Russia
[2] Moscow MV Lomonosov State Univ, Fac Phys, Dept Quantum Stat & Field Theory, Moscow 119991, Russia
[3] Univ Cambridge, CMS, DAMTP, Ctr Theoret Cosmol, Cambridge CB3 0WA, England
[4] Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, Moscow 119991, Russia
来源：
PHYSICAL REVIEW D | 2009年 / 80卷 / 08期
关键词：
NO-HAIR THEOREM; DARK ENERGY; COSMOLOGICAL MODELS; QUINTOM COSMOLOGIES; PHANTOM; ANISOTROPY; TACHYON; CONSTRAINTS; INFLATION; DYNAMICS;
D O I：
10.1103/PhysRevD.80.083532
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
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 analyze the stability of solutions of the form Phi(t) = t.
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页数：13
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