Speaker
Description
Superfluidity can significantly influence the dynamics of fermionic systems. On the one hand, it produces an excitation gap that suppresses dissipative processes and facilitates large-amplitude collective motion. On the other hand, the spontaneous breaking of U(1) symmetry gives rise to additional collective excitations, including Goldstone and Higgs modes.
In nuclear systems, these phenomena are obscured by finite-size effects and strong coupling to other degrees of freedom. Consequently, disentangling the various underlying mechanisms is particularly challenging in systems comprising no more than a few hundred particles. A realistic description of collision dynamics must therefore incorporate a broad range of relevant physical ingredients to avoid an oversimplified picture of the collision process.
In this talk, I will discuss selected aspects of superfluid dynamics in nuclear collisions.