435 citations · 4.3k across the 60 of their papers we have counts for
12 papers · 1 filter
CMBPol Mission Concept Study: Probing Inflation with CMB Polarization
Daniel Baumann, Mark G. Jackson, Peter Adshead +56
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 CMB measu…
Reconstructing a general inflationary action
Rachel Bean, Daniel J. H. Chung, Ghazal Geshnizjani
If inflation is to be considered in an unbiased way, as possibly originating from one of a wide range of underlying theories, then observations need not be simply applied to recons…
Cuscuton Cosmology: Dark Energy meets Modified Gravity
Niayesh Afshordi, Daniel J. H. Chung, Michael Doran +1
In a companion paper (hep-th/0609150), we have introduced a model of scalar field dark energy, Cuscuton, which can be realized as the incompressible (or infinite speed of sound) li…
Mapping Luminosity-Redshift Relationship to LTB Cosmology
Daniel J. H. Chung, Antonio Enea Romano
We derive a direct general map from the luminosity distance D(z) to the inhomogeneous matter distribution M(r) in the Lemaitre-Tolman-Bondi (LTB) cosmology and compute several exam…
Approximate Consistency Condition from Running Spectral Index in Slow-Roll Inflationary Models
Daniel J. H. Chung, Antonio Enea Romano
Density perturbations generated from inflation almost always have a spectral index n_s which runs (varies with the wavelength). We explore a running spectral index scenario in whic…
Do Large-Scale Inhomogeneities Explain Away Dark Energy?
Ghazal Geshnizjani, Daniel J. H. Chung, Niayesh Afshordi
Recently, new arguments (astro-ph/0501152, hep-th/0503117) for how corrections from super-Hubble modes can explain the present-day acceleration of the universe have appeared in the…