Contact details
| Email: |
fidlerc@me.com |
| Current position: |
Post-doctoral researcher |
| Place: |
Aachen University (Germany) |
I am interested in the dynamics of the Universe, both at early times
related to the CMB and at late times for the large scale structure.
- SONG
- I am involved in the development of the non-linear Boltzmann code
SONG. This code simulates the early Universe at unrivalled precision
including all standard model species.
- Currently it is used to compute:
- B mode polarisation of the CMB induced from non-linear dynamics after inflation
- Non-Guassianity in the temperature and polarisation of the CMB from non-linear dynamics
- Spectral Distortions in the CMB from reionisation
- Working on this project I have gained valuable experience in
numerical simulations and programming. I also have a good
understanding of numerical mathematics and have designed several new
methods fit for the computations performed by SONG.
- Theoretical Cosmology
- I am working on the theoretical framework related to non-linear simulations.
- My work contributes to developing the framework of second-order
cosmological perturbation theory. I have derived the polarised
non-linear Boltzmann equations.
- I am working on a new formalism for non-linear propagation of photons in curved spaces.
Publications @ CURL
2017
[1] Fidler C and Pitrou C 2017 Kinetic theory of fermions in curved spacetime JCAP 1706 013
[2] Fidler C, Tram T, Rampf C, Crittenden R, Koyama K and Wands D 2017 Relativistic initial conditions for N-body simulations JCAP 1706 043
[3] Adamek J, Brandbyge J, Fidler C, Hannestad S, Rampf C and Tram T 2017 The effect of early radiation in N-body simulations of
cosmic structure formation Mon. Not. Roy. Astron. Soc. 470 303–13
[4] Fidler C, Tram T, Rampf C, Crittenden R, Koyama K and Wands D 2017 General relativistic weak-field limit and Newtonian
N-body simulations JCAP 1712 022
[5] Fidler C and Ringeval C 2017 CMB anisotropies from patchy reionisation and diffuse
Sunyaev-Zel’dovich effects JCAP 1710 026
2016
[1] Fidler C, Pettinari G and Pitrou C 2016 Precise numerical estimation of the magnetic field
generated around recombination Phys. Rev. D93 103536
[2] Tram T, Fidler C, Crittenden R, Koyama K, Pettinari G W and Wands D 2016 The Intrinsic Matter Bispectrum in \LambdaCDM JCAP 1605 058
[3] Fidler C, Tram T, Rampf C, Crittenden R, Koyama K and Wands D 2016 Relativistic Interpretation of Newtonian Simulations for
Cosmic Structure Formation JCAP 1609 031
[4] Brandbyge J, Rampf C, Tram T, Leclercq F, Fidler C and Hannestad S 2016 Cosmological N-body simulations including radiation
perturbations
2015
[1] Fidler C, Rampf C, Tram T, Crittenden R, Koyama K and Wands D 2015 General relativistic corrections to N-body simulations
and the Zel’dovich approximation Phys. Rev. D92 123517
