In this direction, quantum regulation of atoms and molecules is realized by various means. Controlled atoms and molecules are taken as research objects, and new ground state molecules, electron excited state molecules and Riedberg molecules with selectable energy levels and controllable yields are prepared by photoassociation.

The novel physical effects of controlled spin-orbit coupling are investigated theoretically. The regulation effect of quantum tunneling on the preparation of ultracold molecules, and the effect and influence of quantum interference effect on the preparation of ultracold ground state molecules in three-level atom-molecular system are studied, and the theoretical research of low and multi-component condensates is expanded. The nonlinear and coherent effects in BEC are studied theoretically. Feshbach resonances and optical lattices are used to study strong correlations in ulster-cold atoms. Solve the problem of calculating the tunneling probability of excited states in magnetic macroscopic