3 papers
math-ph2025
Quantum Boltzmann dynamics and bosonized particle-hole interactions in fermion gases
Esteban Cárdenas, Thomas Chen
In this paper, we study a cold gas of weakly interacting fermions. We describe the time evolution of states that are perturbations of the Fermi ball, and analyze the dyna…
math-ph2025
On the effective dynamics of Bose-Fermi mixtures
Esteban Cárdenas, Joseph K. Miller, NataÅ¡a PavloviÄ
In this work, we describe the dynamics of a Bose-Einstein condensate interacting with a degenerate Fermi gas, at zero temperature. First, we analyze the mean-field approximation of…
math-ph2024
Radiative corrections to the dynamics of a tracer particle coupled to a Bose scalar field
Esteban Cárdenas, David Mitrouskas
We consider a tracer particle coupled to a Bose scalar field and study the regime where the field's propagation speed approaches infinity. For initial states devoid of field excita…