Cosmology with Mimetic Matter

被引：230

作者：

Chamseddine, Ali H. ^{[1
,2
]}

Mukhanov, Viatcheslav ^{[3
,4
]}

Vikman, Alexander ^{[3
]}

机构：

[1] Amer Univ Beirut, Dept Phys, Beirut, Lebanon

[2] Inst Hautes Etud Sci, F-91440 Bures Sur Yvette, France

[3] Univ Munich, D-80333 Munich, Germany

[4] MPI Phys, D-80850 Munich, Germany

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2014年 / 06期

基金：

美国国家科学基金会;

关键词：

modified gravity; inflation; cosmological perturbation theory; dark energy theory; K-INFLATION;

D O I：

10.1088/1475-7516/2014/06/017

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider minimal extensions of the recently proposed Mimetic Dark Matter and show that by introducing a potential for the mimetic non-dynamical scalar field we can mimic nearly any gravitational properties of the normal matter. In particular, the mimetic matter can provide us with inflaton, quintessence and even can lead to a bouncing nonsingular universe. We also investigate the behaviour of cosmological perturbations due to a mimetic matter. We demonstrate that simple mimetic inflation can produce red-tilted scalar perturbations which are largely enhanced over gravity waves.

引用

页数：14

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