Matter Instability in Theories with Modified Induced Gravity
Matter stability is a necessary condition to have a cosmologically viable model. Modified gravity in the spirit of f(R) theories suffers from matter instability in some subdomains of the model parameter space. It has been shown recently that the late-time cosmic speedup can be explained through an f...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2012-01-01
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| Series: | Advances in High Energy Physics |
| Online Access: | http://dx.doi.org/10.1155/2012/679156 |
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| Summary: | Matter stability is a necessary condition to have a cosmologically viable model. Modified gravity
in the spirit of f(R) theories suffers from matter instability in some subdomains of the model
parameter space. It has been shown recently that the late-time cosmic speedup can be explained
through an f(R)-modified induced gravity program. In this paper, we study the issue of matter
instability in a braneworld setup with modified induced gravity. |
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| ISSN: | 1687-7357 1687-7365 |