Dark energy model with higher derivative of Hubble parameter
In this Letter we consider a dark energy model in which the energy density is a function of
the Hubble parameter H and its derivative with respect to time ρde= 3αH¨ H− 1+ 3βH˙+
3γH2. The behavior of the dark energy and the expansion history of the Universe depend
heavily on the parameters of the model α, β and γ. It is very interesting that the age problem
of the well-known three old objects can be alleviated in this models.
the Hubble parameter H and its derivative with respect to time ρde= 3αH¨ H− 1+ 3βH˙+
3γH2. The behavior of the dark energy and the expansion history of the Universe depend
heavily on the parameters of the model α, β and γ. It is very interesting that the age problem
of the well-known three old objects can be alleviated in this models.
Dark energy model with higher derivative of Hubble parameter
C Songbai, J Jiliang - Physics Letters. Section B, 2009 - osti.gov
In this Letter we consider a dark energy model in which the energy density is a function of
the Hubble parameter H and its derivative with respect to time {rho}{sub de}= 3 {alpha} HH
{sup-1}+ 3 {beta} H {sup.}+ 3 {gamma} H {sup 2}. The behavior of the dark energy and the
expansion history of the Universe depend heavily on the parameters of the model
{alpha},{beta} and {gamma}. It is very interesting that the age problem of the well-known
three old objects can be alleviated in this models.
the Hubble parameter H and its derivative with respect to time {rho}{sub de}= 3 {alpha} HH
{sup-1}+ 3 {beta} H {sup.}+ 3 {gamma} H {sup 2}. The behavior of the dark energy and the
expansion history of the Universe depend heavily on the parameters of the model
{alpha},{beta} and {gamma}. It is very interesting that the age problem of the well-known
three old objects can be alleviated in this models.
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