We review the particle theory origin of inflation and curvaton mechanisms for generating
large scale structures and the observed temperature anisotropy in the cosmic microwave …

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The past two decades have seen transformative advances in cosmology and string theory.
Observations of the cosmic microwave background have revealed strong evidence for …

In a series of five lectures I review inflationary cosmology. I begin with a description of the
initial conditions problems of the Friedmann-Robertson-Walker (FRW) cosmology and then …

Using recent simulation results, we provide the mass and speed spectrum of cosmic string
loops. This is the quantity of primary interest for many phenomenological signatures of …

We investigate the embedding of brane inflation into stable compactifications of string
theory. At first sight a warped compactification geometry seems to produce a naturally flat …

We perform a general study of primordial scalar non-Gaussianities in single-field inflationary
models in Einstein gravity. We consider models where the inflaton Lagrangian is an arbitrary …

We present an explicit calculation of the spectrum of a general class of string models,
corresponding to Calabi-Yau flux compactifications with h 1, 2> h 1, 1> 1 with leading …

We summarize the utility of precise cosmic microwave background (CMB) polarization
measurements as probes of the physics of inflation. We focus on the prospects for using …

The detection of primordial non-Gaussianity could provide a powerful means to test various
inflationary scenarios. Although scale-invariant non-Gaussianity (often described by the f NL …