Jack Binysh: Knotted fields in soft matter, and how to make them
Vir: Seminar fizike mehkih snovi
Knotted fields are physical fields containing knotted
structures --- structures which then talk to the field as a whole. Examples abound, but in this talk I will describe two liquid crystal examples which have attracted considerable recent interest: Hopfions in
cholesteric cells, and Knotted Disclination lines. I will then talk about how one can construct these textures theoretically, including our recent work on constructions using Maxwell's solid angle function.