Speaker
Ruben Lier
Description
At all scales, phases of matter can be found which can be understood from the point of view of spontaneous symmetry breaking. For such phases of matter, it is possible to formulate an adequate hydrodynamic description by including Goldstone fields. In my seminar, I will consider ways in which damped hydrodynamics can arise when the spontaneous symmetry breaking is undermined weakly. This undermining can happen either through explicit symmetry breaking, which gives rise to pseudo-Goldstones, or through topological defects, which give rise to singular Goldstones. I will then discuss how to systematically construct the most general hydrodynamic theory of pseudo-Goldstones and singular Goldstones and what are the distinct effects on transport.
