2018 Volume 73 Issue 6 Pages 352-360
Application of resurgence theory to quantum physics attracts a great deal of attention. Resurgence theory was originally developed in ODE to obtain solutions from formal power-series solutions by use of nontrivial relation between formal solutions. It has been recently revealed that a similar relation between perturbative and nonperturbative contributions also exists in quantum theory. We give a brief review on the recent progress in the topic.