Publications (27)
The non-adiabatic pressure in general scalar field systems
Adam J. Christopherson, Karim A. Malik
Vorticity from isocurvature in the early universe
Adam J. Christopherson, Karim A. Malik
Relating metric and covariant perturbation theories in $f(R)$ gravity
Adam J. Christopherson
New astrophysical bounds on ultralight axionlike particles
Nilanjan Banik, Adam J. Christopherson, Pierre Sikivie +1
Modelling non-dust fluids in cosmology
Adam J. Christopherson, J. C. Hidalgo, Karim A. Malik
Calculating Non-adiabatic Pressure Perturbations during Multi-field Inflation
Ian Huston, Adam J. Christopherson
The magnitude of the non-adiabatic pressure in the cosmic fluid
Iain A. Brown, Adam J. Christopherson, Karim A. Malik
Quantifying the behaviour of curvature perturbations during inflation
Ellie Nalson, Adam J. Christopherson, Ian Huston +1
A short note on the curvature perturbation at second order
Adam J. Christopherson, Ellie Nalson, Karim A. Malik
Gauge conditions in combined dark energy and dark matter systems
Adam J. Christopherson
The Poisson equation at second order in relativistic cosmology
Juan Carlos Hidalgo, Adam J. Christopherson, Karim A. Malik
Estimating the amount of vorticity generated by cosmological perturbations in the early universe
Adam J. Christopherson, Karim A. Malik, David R. Matravers
Stabilising the Planck mass shortly after inflation
Carsten van de Bruck, Adam J. Christopherson, Mathew Robinson
Isocurvature Perturbations and Reheating in Multi-Field Inflation
Ian Huston, Adam J. Christopherson
Quantifying the behaviour of curvature perturbations near Horizon Crossing
Ellie Nalson, Adam J. Christopherson, Ian Huston +1
Comparing different formulations of non-linear cosmological perturbation theory
Adam J. Christopherson, Karim A. Malik, David R. Matravers +1
Second-order cosmological perturbation theory and initial conditions for $N$-body simulations
Adam J. Christopherson, Juan Carlos Hidalgo, Cornelius Rampf +1
The Evolution of Non-adiabatic Pressure Perturbations during Multi-field Inflation
Ian Huston, Adam J. Christopherson
Vorticity generation at second order in cosmological perturbation theory
Adam J. Christopherson, Karim A. Malik, David R. Matravers
Can cosmological perturbations produce early universe vorticity?
Adam J. Christopherson, Karim A. Malik
Practical tools for third order cosmological perturbations
Adam J. Christopherson, Karim A. Malik
Effects of non-linearities on magnetic field generation
Ellie Nalson, Adam J. Christopherson, Karim A. Malik
The future of cosmology and the role of non-linear perturbations
Adam J. Christopherson
Linear Newtonian perturbation theory from the Schrödinger-Poisson equations
Nilanjan Banik, Adam J. Christopherson, Pierre Sikivie +1
Applications of Cosmological Perturbation Theory
Adam J. Christopherson
Recombination era magnetic fields from axion dark matter
Nilanjan Banik, Adam J. Christopherson
Cosmological Perturbations: Vorticity, Isocurvature and Magnetic Fields
Adam J. Christopherson