5 papers · 1 filter
Effective pair interaction between impurity particles induced by a dense Fermi gas
David Mitrouskas, Peter Pickl
We study the dynamics of a small number of impurity particles coupled to the ideal Fermi gas in a -dimensional box. The impurities interact with the fermions via a two-body pote…
Weak coupling limit for the ground state energy of the 2D Fermi polaron
David Mitrouskas
We analyze the ground state energy for N fermions in a two-dimensional box interacting with an impurity particle via two-body point interactions. We allow for mass ratios M > 1.225…
A note on the Fröhlich dynamics in the strong coupling limit
David Mitrouskas
We revise a previous result about the Fröhlich dynamics in the strong coupling limit obtained in [Gri17]. In the latter it was shown that the Fröhlich time evolution applied to the…
Derivation of the Landau-Pekar equations in a many-body mean-field limit
Nikolai Leopold, David Mitrouskas, Robert Seiringer
We consider the Fröhlich Hamiltonian in a mean-field limit where many bosonic particles weakly couple to the quantized phonon field. For large particle number and suitably small co…
High Density Limit of the Fermi Polaron with Infinite Mass
Ulrich Linden, David Mitrouskas
We analyze the ground state energy for identical fermions in a two-dimensional box of volume interacting with an external point scatterer. Since the point scatterer can b…