90 citations · 438 across the 15 of their papers we have counts for
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Anisotropic Kantowski-Sachs Universe from Gravitational Tunneling and its Observational Signatures
Julian Adamek, David Campo, Jens C. Niemeyer
In a landscape of compactifications with different numbers of macroscopic dimensions, it is possible that our universe has nucleated from a vacuum where some of our four large dime…
Quantum corrections during inflation and conservation of adiabatic perturbations
David Campo
The possibility that quantum corrections break the conservation of superhorizon adiabatic perturbations in single field inflation is examined. I consider the lowest order correctio…
Decoherence and entropy of primordial fluctuations. I: Formalism and interpretation
David Campo, Renaud Parentani
We propose an operational definition of the entropy of cosmological perturbations based on a truncation of the hierarchy of Green functions. The value of the entropy is unambiguous…
Decoherence and entropy of primordial fluctuations II. The entropy budget
David Campo, Renaud Parentani
We calculate the entropy of adiabatic perturbations associated with a truncation of the hierarchy of Green functions at the first non trivial level, i.e. in a self-consistent Gauss…
Damped Corrections to Inflationary Spectra from a Fluctuating Cutoff
David Campo, Jens Niemeyer, Renaud Parentani
We reconsider trans-Planckian corrections to inflationary spectra by taking into account a physical effect which has been overlooked and which could have important consequences. We…
Minimal modifications of the primordial power spectrum from an adiabatic short distance cutoff
J. C. Niemeyer, R. Parentani, D. Campo
As a simple model for unknown Planck scale physics, we assume that the quantum modes responsible for producing primordial curvature perturbations during inflation are placed in the…