245 research outputs found

### Holographic principle and large scale structure in the universe

A reasonable representation of large scale structure, in a closed universe so
large it's nearly flat, can be developed by extending the holographic principle
and assuming the bits of information describing the distribution of matter
density in the universe remain in thermal equilibrium with the cosmic microwave
background radiation. The analysis identifies three levels of self-similar
large scale structure, corresponding to superclusters, galaxies, and star
clusters, between today's observable universe and stellar systems. The
self-similarity arises because, according to the virial theorem, the average
gravitational potential energy per unit volume in each structural level is the
same and depends only on the gravitational constant. The analysis indicates
stellar systems first formed at z\approx62, consistent with the findings of
Naoz et al, and self-similar large scale structures began to appear at redshift
z\approx4. It outlines general features of development of self-similar large
scale structures at redshift z<4. The analysis is consistent with observations
for angular momentum of large scale structures as a function of mass, and
average speed of substructures within large scale structures. The analysis also
indicates relaxation times for star clusters are generally less than the age of
the universe and relaxation times for more massive structures are greater than
the age of the universe.Comment: Further clarification of assumptions underlying the analysi

### Holography, charge and baryon asymmetry

The reason for baryon asymmetry in our universe has been a pertinent question
for many years. The holographic principle suggests a charged preon model
underlies the Standard Model of particle physics and any such charged preon
model requires baryon asymmetry. This note estimates the baryon asymmetry
predicted by charged preon models in closed inflationary Friedmann universes.Comment: 5 pages, no figures, clarified discussion of comparison with
observation

### Holography and non-locality in a closed vacuum-dominated universe

A closed vacuum-dominated Friedmann universe is asymptotic to a de Sitter
space with a cosmological event horizon for any observer. The holographic
principle says the area of the horizon in Planck units determines the number of
bits of information about the universe that will ever be available to any
observer. The wavefunction describing the probability distribution of mass
quanta associated with bits of information on the horizon is the boundary
condition for the wavefunction specifying the probability distribution of mass
quanta throughout the universe. Local interactions between mass quanta in the
universe cause quantum transitions in the wavefunction specifying the
distribution of mass throughout the universe, with instantaneous non-local
effects throughout the universe.Comment: 4 pages, no figures, to be published in Int. J. Theor. Phys,
references correcte

### Evidence for the existence of new processes at energies above 2 times 10 11 eV

Cosmic ray flux measurements using calorimeter

### A simple quantum cosmology

A simple and surprisingly realistic model of the origin of the universe can
be developed using the Friedmann equation from general relativity, elementary
quantum mechanics, and the experimental values of h, c, G and the proton mass.
The model assumes there are N space dimensions (with N > 6) and the potential
constraining the radius r of the invisible N -3 compact dimensions varies as
r^4. In this model, the universe has zero total energy and is created from
nothing. There is no initial singularity. If space-time is eleven dimensional,
as required by M theory, the scalar field corresponding to the size of the
compact dimensions inflates the universe by about 26 orders of magnitude (60
e-folds). If the Hubble constant is 65 km/sec Mpc, the energy density of the
scalar field after inflation results in Omega-sub-Lambda = 0.68, in agreement
with recent astrophysical observations.Comment: To be published in General Relativity and Gravitation, August 200

- …