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Type Ia Supernova Explosion Models
W. Hillebrandt, J. C. Niemeyer
Because calibrated light curves of Type Ia supernovae have become a major tool to determine the local expansion rate of the Universe and also its geometrical structure, considerabl…
Thermonuclear Explosions of Chandrasekhar-Mass White Dwarfs
W. Hillebrandt, M. Reinecke, J. C. Niemeyer
We present a new way of modeling turbulent thermonuclear deflagration fronts in Chandrasekhar-mass white dwarfs, consisting of carbon and oxygen, undergoing a type Ia supernova exp…
Inflation with a Planck-scale frequency cutoff
J. C. Niemeyer
The implementation of a Planck-scale high frequency and short wavelength cutoff in quantum theories on expanding backgrounds may have potentially nontrivial implications, such as t…
The nonlinear evolution of de Sitter space instabilities
Jens C. Niemeyer, Raphael Bousso
We investigate the quantum evolution of large black holes that nucleate spontaneously in de Sitter space. By numerical computation in the s-wave and one-loop approximations, we ver…