Dynamics in nonlocal linear models in the Friedmann-Robertson-Walker metric

被引:49
作者
Aref'eva, Irina Ya [1 ]
Joukovskaya, Liudmila V. [2 ]
Vernov, Sergey Yu [3 ]
机构
[1] Russian Acad Sci, VA Steklov Math Inst, Moscow 119991, Russia
[2] Univ Cambridge, DAMTP, Ctr Math Sci, Cambridge CB3 0WA, England
[3] Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, Moscow 119991, Russia
基金
英国科学技术设施理事会;
关键词
D O I
10.1088/1751-8113/41/30/304003
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A general class of cosmological models driven by a nonlocal scalar field inspired by string field theory is studied. Using the fact that the considering linear nonlocal model is equivalent to an infinite number of local models we have found an exact special solution of the nonlocal Friedmann equations. This solution describes a monotonically increasing universe with the phantom dark energy.
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页数:14
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