This proposal addresses the development of new nonperturbative theoretical formalisms and time-dependent methods for detailed ab initio investigation of the electronic structure and quantum dynamics of many-electron Rydberg atomic and diatomic molecular systems in the presence of intense external fields. Problems considered include:
1) Structure and Dynamics of One-Valence-Electron Rydberg Atoms in Microwave Fields.
2) Development of Self-Interaction-Free Density Functional Theories for the Treatment of the Electronic Structure of Many-Electron Rydberg Systems.
3) Time-Dependent Density Functional Theory (TDDFT) for the Treatment of Multiphoton Quantum Dynamics of Complex Rydberg Atoms in Time-Dependent Fields.
