Classical Nature of the Evolution of Dark Energy Density

Details Classical Nature of the Evolution of Dark Energy Density Classical Nature of the Evolution of Dark Energy Density

2006-10-24

arxiv.org/abs/gr-qc/0610114v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages, 1 figure

Scientific paper

By ignoring the local density fluctuations, we construct an uniform Higgs-field's (inflaton's) quantum theory with varying effective Planck constant ($\hbar_{v}(t) \propto R(t)^{-3}$) for the evolution of the dark energy density during the epoch after inflation. With presumable sufficient inflation in the very early period (time-scale is $t_{inf}$), so that $\hbar_{v}\to 0$, the state of universe decomposes into some decoherent components, which could be the essential meaning of phase transition, and each of them could be well described by classical mechanics for an inharmonic oscillator in the corresponding potential-well with a viscous force. We find that the cosmological constant at present is $\Lambda_{now}\approx 2.05\times 10^{-3}$ eV, which is almost independent of the choice of potential for inflaton, and agrees excellently with the recent observations. In addition, we find that, during the cosmic epoch after inflation, the dark energy is almost conserved as well as the matter's energy, therefore the "why now" problem can be avoided.

Affiliated with

Also associated with

No associations

Rating

Classical Nature of the Evolution of Dark Energy Density does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Classical Nature of the Evolution of Dark Energy Density, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Classical Nature of the Evolution of Dark Energy Density will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-343747