Speaker
Description
We present numerical simulations of the collision and subsequent evolution of two superfluid fermionic systems in one dimension. The study focuses on the dynamics of two initially separated superfluid systems that begin to interact following the removal or modification of a potential barrier. This interaction induces excitations manifested as particle flow and oscillations of both the density and pairing fields.
The initially nonequilibrium system is evolved in time to investigate the equilibration process. The simulations are performed within the framework of time-dependent density functional theory for superfluid systems, using the superfluid local density approximation. We analyze the evolution of particle density, the superfluid order parameter, and the characteristic time scales associated with the collision and energy redistribution.
The one-dimensional setting enables a controlled investigation of the fundamental mechanisms of thermalization while maintaining computational efficiency. We examine how initial conditions, external potential geometry, and relative motion influence the collision dynamics and the approach to a quasi-equilibrium state. System parameters are chosen to qualitatively mimic collisions of medium-mass atomic nuclei.