Cosmic acceleration and crossing of w=-1 barrier in non-local Cubic Superstring Field Theory model

被引：54

作者：

Aref'eva, Irina Ya. ^{[1
]}

Koshelev, Alexey S.

机构：

[1] Russian Acad Sci, VA Steklov Math Inst, Gubkin St 8, Moscow 119991, Russia

[2] Univ Crete, Dept Phys, Iraklion 71003, Crete, Greece

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2007年 / 02期

关键词：

string field theory; cosmology of theories beyond the SM;

D O I：

10.1088/1126-6708/2007/02/041

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We show that the rolling of the Cubic Superstring Field Theory (CSSFT) nonlocal tachyon in the FRWUniverse leads to a cosmic acceleration with a periodic crossing of the w = - 1 barrier at large time. An asymptotic solution for the tachyon field and Hubble parameter is constructed explicitly linearizing non-local equations of motion. For a small Hubble parameter a period of oscillations is a number entirely determined by parameters of the CSSFT action.

引用

页数：18

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