Tubular Image States and Light-Driven Molecular Switches.

We introduce new tubular image states (TIS) that can be formed around linear conductors and dielectrics, like metallic carbon nanotubes. These Rydberg-like molecular states have a very large extent and possess peculiar physical properties. We also present a two-step light-driven enantiomeric switch, which within 100 ns can turn a mixture of left and right chiral molecules into a pure enantiomeric form. Molecular switches with more quasi-stable states can be used as dynamic memories or motors. © 2003 American Institute of Physics [ABSTRACT FROM AUTHOR]