32. Eye on ArXiv: 30 Apr 2008 - Curvature perturbation from false vacuum inflation

Power spectrum of primordial perturbations is calculated for inlationary models with false minima of the inflaton potential.


30. Eye on ArXiv: 30 Apr 2008 - Effective QFT for inflation

Today, I think, the most interesting paper in ArXiv is the one by Steven Weinberg called “Effective field theory for inflation“. I would say, it generalizes results by Cheung et al. (…)


28. Eye on ArXiv: 24 Apr 2008 - dS vacua in no-scale SUGRA; multifield DBI inflation

Laura Covi et al., de Sitter vacua in no-scale supergravities and Calabi-Yau string models; D. Langlois et al., Primordial fluctuations and non-Gaussianities in multi-field DBI inflation


25. Geometry and causal structure of de Sitter space (Inflationary perturbations 4)

I discuss geometry, causal structure and behavior of QFT Green functions in de Sitter space


24. Inflation: description in terms of hydrodynamics (Inflationary perturbations 4)

This post continues my lecture notes on large scale structure, cosmological perturbations and inflation. The last post in this series was about the problem of initial conditions in FRW cosmology. (…)