Speaker
Bowen Fu
(Northeastern University, Shenyang)
Description
Walls bounded by strings are a type of hybrid topological defect composed of cosmic strings and domain walls. Such a hybrid defect can appear when a $U(1)$ symmetry is broken into a $Z_n$ symmetry, which is further broken at a later time. The formation of walls affects the dynamic of the pre-existing string network and changes its gravitational wave radiation. We explore the relevant phenomenology in various models and notice that the evolution of the string network can be different from what is described in previous works.
Primary author
Bowen Fu
(Northeastern University, Shenyang)
