4 citations · 6 across the 6 of their papers we have counts for
6 papers
Scale-Invariant Open Quantum Systems
Carlos Argüelles, Gabriela Barenboim, Gonzalo Herrera +2
We develop a complete theoretical framework for open quantum systems coupled to scale-invariant environments. We show that such environments are universally described by unparticle…
Universal Description of Decoherence in Scale-Invariant Environments
Carlos Argüelles, Gabriela Barenboim, Gonzalo Herrera +2
When a quantum system couples to a scale-invariant environment, what form must its decoherence take? We prove that the answer is unique: under locality, Lorentz invariance, unitari…
Fifty shades of grayness: parametrizations of spectral distortions and applications in cosmology
Gabriela Barenboim, Julien Froustey, Cyril Pitrou +1
Thermal distribution functions can only be of the Fermi-Dirac or Bose-Einstein types, whereas distorted spectra encompass any possible deviations from these shapes. It is fruitful…
Primordial neutrinos fade to gray: constraints from cosmological observables
Gabriela Barenboim, Julien Froustey, Cyril Pitrou +1
We investigate the effect of potentially large distortions of the relic neutrino spectra on cosmological observables. To that end, we consider a phenomenological model of "gray" sp…
Neutrino Emission and Plasma Heating from Primordial Black Holes: An Improved Approach to Constraints
Héctor Sanchis, Gabriela Barenboim, Yuber F. Perez-Gonzalez
We investigate the impact of neutrino emission via Hawking radiation from primordial black holes (PBHs) on the cosmological effective number of neutrino species, …
A bound on thermal y-distortion of the cosmic neutrino background
Gabriela Barenboim, Héctor Sanchis, William H. Kinney +1
We consider the possibility that the cosmic neutrino background might have a nonthermal spectrum, and investigate its effect on cosmological parameters relative to standard -Col…