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Masking a singularity with k-essence fields in an emergent gravity metric
emergent gravity metric
2010/11/16
It is known that dynamical solutions of the k-essence equation of motion change the metric for
the perturbations around these solutions and the perturbations propagate in an emergent spacetime with m...
Quantum Cosmology Close to the Classical Big Bang Singularity and in the Semiclassical Limit
Quantum Cosmology Semiclassical Limit Big Bang Singularity
2010/3/18
We investigate a cosmological model whose energy content is described by a Chaplygin gas represented by a scalar field $\phi$ with an associated potential producing a big bang singularity such that fo...
The string wave function across a Kasner singularity
string wave function Kasner singularity
2010/3/22
A collision of orbifold planes in eleven dimensions has been proposed as an explanation of the hot big bang. When the two planes are close to each other, the winding membranes become the lightest mode...