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Testing the isotropy of high energy cosmic rays using spherical needlets
Testing isotropy high energy cosmic rays using spherical
2011/10/14
For many decades, ultra-high energy charged particles have been a puzzle for particle physicists and astrophysicists. Nor the sites of production, nor the mechanism responsible for the generation of t...
Quantum gravity stability of isotropy in homogeneous cosmology
quantum stability cosmological isotropy cosmological
2011/10/17
It has been shown that anisotropy of homogeneous spacetime described by the general Kasner metric can be damped by quantum fluctuations coming from perturbative quantum gravity in one-loop approximati...
The “cosmological principle” was set up early without realizing its implications for the
horizon problem, and almost entirely without support from observational data. Consistent signals of anisotropy...