47 citations · 272 across the 43 of their papers we have counts for
6 papers · 1 filter
A Posteriori Error Bounds for Two Point Boundary Value Problems: A Green's Function Approach
Jeremiah Birrell
We present a computer assisted method for generating existence proofs and a posteriori error bounds for solutions to two point boundary value problems (BVPs). All truncation errors…
Non-Equilibrium Aspects of Relic Neutrinos: From Freeze-out to the Present Day
Jeremiah Birrell
In this dissertation, we study the evolution and properties of the relic (or cosmic) neutrino distribution from neutrino freeze-out at MeV through the free-streaming era u…
Relic Neutrino Freeze-out: Dependence on Natural Constants
Jeremiah Birrell, Cheng-Tao Yang, Johann Rafelski
Analysis of cosmic microwave background radiation fluctuations favors an effective number of neutrinos, . This motivates a reinvestigation of the neutrino freeze-out process…
Quark-Gluon Plasma as the Possible Source of Cosmological Dark Radiation
Jeremiah Birrell, Johann Rafelski
The effective number of neutrinos, , obtained from CMB fluctuations accounts for all effectively massless degrees of freedom present in the Universe, including but…
Boltzmann Equation Solver Adapted to Emergent Chemical Non-equilibrium
Jeremiah Birrell, Jon Wilkening, Johann Rafelski
We present a novel method to solve the spatially homogeneous and isotropic relativistic Boltzmann equation. We employ a basis set of orthogonal polynomials dynamically adapted to a…
Proposal for Resonant Detection of Relic Massive Neutrinos
Jeremiah Birrell, Johann Rafelski
We present a novel method for detecting the relic neutrino background that takes advantage of structured quantum degeneracy to amplify the drag force from neutrinos scattering off…