The adhesion model as a field theory for cosmological clustering

by Dr Gerasimos Rigopoulos (Heidelberg)

Wednesday 28 Jan 2015, 14:00 → 15:00 Europe/Berlin

3344 (TUM Physik Department)

The adhesion model has been proposed in the past as an improvement of the Zel'dovich approximation, providing a good description of the formation of the cosmic web. We recast the model as a field theory for cosmological large scale structure. The dynamics of this Stochastic Adhesion Model (SAM) is reminiscent of the well known Kardar-Parisi-Zhang equation. We comment on the suitability of this model for describing the non-linear regime of the CDM power spectrum and its utility as a relatively simple approach to cosmological clustering.