The w < -1 side of Dark Energy - Univers Invisible
The w < -1 side of Dark Energy - Univers Invisible
The w < -1 side of Dark Energy - Univers Invisible
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
<strong>The</strong> phantom divide- What happens to perturbations when w Q= – 1?Fluid equations:e.g. Bean and Doré 03- <strong>The</strong> phantom psychosis:<strong>The</strong> one given by scalar kinetic term• 1 st divergence:Hu ‘04c a2is not observable• 2 nd divergence: in θ equationCaldwell and Doran ‘05c S2 0 at the crossing• Instability:c S2 0 c S2< 0Higher derivative termsVikman 04, Caldwell and Doran 05, Kunz and Sapone ‘06
Change language