Reflection and reconnection interactions of resonant dromions

The interactions between dromions have still not yet been understood very well. In this short paper, two new types of dromion interactions, dromion reflection and reconnection, are reported for the generalized Broer-Kaup system as a representative example. Dromion reflection is when a dromion behaves like a ball reflected by a wall. Essentially, it is a dromion interacting with an invisible ghost wall caused by a ghost line soliton. While dromion reconnection interaction is the scenario where the bounded dromions may be opened and then reconnected during the interaction. These two novel interaction phenomena are quite universal in high dimensions.