497 citations · 8.4k across the 112 of their papers we have counts for
5 papers · 1 filter
Forecasting Cosmic Doomsday from CMB/LSS Cross-Correlations
Jaume Garriga, Levon Pogosian, Tanmay Vachaspati
A broad class of dark energy models, which have been proposed in attempts at solving the cosmological constant problems, predict a late time variation of the equation of state with…
Large-scale power in the CMB and new physics: an analysis using Bayesian model comparison
Anastasia Niarchou, Andrew H. Jaffe, Levon Pogosian
One of the most tantalizing results from the WMAP experiment is the suggestion that the power at large scales is anomalously low when compared to the prediction of the ``standard''…
On formation of domain wall lattices
Nuno D. Antunes, Levon Pogosian, Tanmay Vachaspati
We study the formation of domain walls in a phase transition in which an S_5\times Z_2 symmetry is spontaneously broken to S_3\times S_2. In one compact spatial dimension we observ…
Observational Constraints on Cosmic String Production During Brane Inflation
Levon Pogosian, S. -H. Henry Tye, Ira Wasserman +1
Overall, brane inflation is compatible with the recent analysis of the WMAP data. Here we explore the constraints of WMAP and 2dFGRS data on the various brane inflationary scenario…
Anthropic predictions for neutrino masses
Max Tegmark, Alexander Vilenkin, Levon Pogosian
It is argued that small values of the neutrino masses may be due to anthropic selection effects. If this is the case, then the combined mass of the three neutrino species is expect…