  Non-Hermitian topological systems are the newest additions to the growing
field of topological matter. In this work, we report of the light-driven
exceptional physics in a multi-Weyl semi-metal. The driving is not only a key
ingredient to control the position of the exceptional contours (ECs), light
also has the ability to generate new ECs. Interestingly, we also demonstrate
topological charge distribution and Lifshitz transition, which are controllable
by the driving field in such generated ECs. Our findings present a promising
platform for the manipulation and control over exceptional physics in
non-Hermitian topological matter.
