Formation of dynamical Schrödinger cats in low-dimensional ultracold attractive Bose gases

英文摘要：

Dynamical Schrödinger cats can be formed when a one-dimensional attractive Bose-gas cloud is scattered off a potential barrier. Once formed, these objects are stable in time. The phenomenon and its mechanism -- transformation of kinetic energy to internal energy of the scattered atomic cloud -- are obtained by solving the time-dependent many-boson Schrödinger equation. Implications are discussed.