Content
Collision of two spin polarised fermionic clouds
Olga Goulko (LMU)
26.10.2011 at 12:45
Atomic gases are a versatile and easily controllable tool to study spin transport phenomena. In this talk I will show how the collision of two spin polarised fermionic clouds can be studied using a simulation of the Boltzmann equation. This work was motivated by recent experiments performed at the MIT. When two clouds of fermions are separated in a cigar shaped trap and then released, they collide and for sufficiently strong interactions can bounce off each other several times. I will describe the numerical setup and discuss the different types of the qualitative behaviour. I will then show how they can be interpreted in terms of the equilibrium properties of the system, and how they relate to the coupling between different collective modes. In particular I will demonstrate that the bounces can be explained purely as a semiclassical collisional phenomenon, without the need for more complex many-body effects.
A 449 Theresienstraße 37