Time-dependent Method for Many-body Problems and Its Application to Nuclear Resonant Systems

摘要

The decay process of the schematic one-dimensional three-body systemis considered. A time-dependent approach is used in combination with aone-dimensional three-body model, which is composed of a heavier corenucleus and two nucleons, with the aim of describing its evolution in twonucleonemission. The process is calculated from the initial state, in whichthe three ingredient particles are confined. In this process, two differenttypes of emission can be found: the earlier process includes the emissionof spatially correlated two-nucleon pair, like a dinucleon, whereas, at asubsequent time, all the particles are separated from each other. The timedependentmethod can be a suitable option to investigate the meta-stableand/or open-quantum systems, where the complicated many-body dynamicsshould necessarily be taken into account.