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Full nonlinear growing and decaying modes of superhorizon curvature perturbations
Full nonlinear growing decaying modes superhorizon curvature perturbations
2010/12/21
We clarify the behavior of curvature perturbations in a nonlinear theory in case the inflaton tem-porarily stops during inflation. We focus on the evolution of curvature perturbation on superhorizon s...
Inflation in Entropic Cosmology: Primordial Perturbations and non-Gaussianities
Inflation in Entropic Cosmology Primordial Perturbations non-Gaussianities
2010/12/21
We investigate thermal inflation in double-screen entropic cosmology. We find that its realization is general, resulting from the system evolution from non-equilibrium to equilibrium. Furthermore,goin...
High Overtones of Dirac Perturbations of a Schwarzschild Black Hole and the Area Spectrum of Quantum Black Holes
Dirac Perturbations a Schwarzschild Black Hole the Area Spectrum Quantum Black Holes
2010/10/18
We find high overtones of the Dirac quasi-normal (QN) spectrum of a Schwarzschild black hole (Sbh), by Leaver’s method. At high overtones, the spacing of the imaginary part of the QN spectrum is equid...