Goo, Yik Wen; Lian, Tong Wei; Ong, Wei Guang; Choi, Wen Ting - arXiv.org - 2009
Atoms and molecules are important conceptual entities we invented to understand the physical world around us. The key to their usefulness lies in the organization of nuclear and electronic degrees of freedom into a single dynamical variable whose time evolution we can better imagine. The use of...