Contact
Name
Position
Christian Fidler
Position
Former member
Member from October 2014 to September 2017
Current position: Postdoc at RWTH, AAchen University, Germany
Member from October 2014 to September 2017
Current position: Postdoc at RWTH, AAchen University, Germany
Research statement
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.
It currently 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.
It currently 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.
- 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.
Projects
Research directions:
Non-active projects
Non-active projects
Publications in IRMP
All my publications on Inspire
Number of publications as IRMP member: 10
Last 5 publications
More publications
Number of publications as IRMP member: 10
Last 5 publications
2017
More publications