Cosmological Reconstruction via Wave Mechanics. Peter Coles School of Physics & Astronomy University of Nottingham. Cosmological Reconstruction Problems. We observe redshifts and (sometimes) estimated distances in the evolved local Universe for some galaxies
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School of Physics & Astronomy
University of Nottingham
Decaying modeThe fluid approach
is no longer unique and the density becomes infinite.
The wave-mechanical approach
to the fluid equations.
in the linear regime; see Coles & Spencer (2003, MNRAS, 342, 176)
where is the comoving period of the perturbation.
1. The amplitude of the initial density fluctuation.
2. The dimensionless number
Evolution of a periodic 1D self-gravitating system with
All trajectories on which A20 define a velocity field; the classical trajectories are streamlines of a probability flow
Given the large-scale structure observable today, can we reverse the effects of gravity and recover information about the primordial universe?
Phase-space evolution of a 1D self-gravitating system with ,
In fluid description, this gives pressure forces arising from a polytropic gas.