- #1
Madster
- 22
- 0
Dear experts,
I really wonder how to extract the equation of stats [itex]w=\frac P \rho[/itex] from the Friedmann equations and how one can see that dark energy needs to have [itex]w<-\frac13[/itex] and why does [itex]w<-1[/itex] violate the null energy condition.
Thanks in advance,
madster
I really wonder how to extract the equation of stats [itex]w=\frac P \rho[/itex] from the Friedmann equations and how one can see that dark energy needs to have [itex]w<-\frac13[/itex] and why does [itex]w<-1[/itex] violate the null energy condition.
Thanks in advance,
madster