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Anomalous CMB polarization and gravitational chirality
Carlo R. Contaldi, Joao Magueijo, Lee Smolin
We consider the possibility that gravity breaks parity, with left and right handed gravitons coupling to matter with a different Newton's constant and show that this would affect t…
Holography and the scale-invariance of density fluctuations
Joao Magueijo, Lee Smolin, Carlo R. Contaldi
We study a scenario for the very early universe in which there is a fast phase transition from a non-geometric, high temperature phase to a low temperature, geometric phase describ…
Using neutron stars and primordial black holes to test theories of quantum gravity
Lee Smolin
Three observational tests of cosmological natural selection, a theory that follows from some hypotheses about quantum gravity, are described. If true, this theory explains the choi…
Galactic disks as reaction-diffusion systems
Lee Smolin
A model of a galactic disk is presented which extends the homogeneous one zone models by incorporating propagation of material and energy in the disk. For reasonable values of the…