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Unitarity and the Vainshtein Mechanism
Nemanja Kaloper, Antonio Padilla, Paul Saffin +1
We investigate low energy limits of massive gauge theories that feature the Vainshtein mechanism, focussing on the effects of the UV modes that are integrated out. It turns out tha…
'The End'
Nemanja Kaloper, Antonio Padilla
Recently we proposed a mechanism for sequestering the Standard Model vacuum energy that predicts that the universe will collapse. Here we present a simple mechanism for bringing ab…
Inflation from Broken Scale Invariance
Csaba Csaki, Nemanja Kaloper, Javi Serra +1
We construct a model of inflation based on a low-energy effective theory of spontaneously broken global scale invariance. This provides a shift symmetry that protects the inflaton…
Vacuum Energy Sequestering: The Framework and Its Cosmological Consequences
Nemanja Kaloper, Antonio Padilla
Recently we suggested a reformulation of General Relativity which completely sequesters from gravity {\it all} of the vacuum energy from a protected matter sector, assumed to conta…
Planck Data and Ultralight Axions
Csaba Csaki, Nemanja Kaloper, John Terning
We examine the effects of photon-axion mixing on the CMB. We show that if there are very underdense regions between us and the last scattering surface which contain coherent magnet…
Natural Chaotic Inflation and UV Sensitivity
Nemanja Kaloper, Albion Lawrence
If the recent measurement of B-mode polarization by BICEP2 is due to primordial gravitational waves, it implies that inflation was driven by energy densities at the GUT scale $M_{G…