Nonspreading wave packets of diatomic molecules: Generation and control

Abstract

A circularly polarized electric field is used to create a trap that can guide the rotational motion of diatomic molecules. Theoretical analyses and numerical calculations support the existence of trapped nonspreading wave packets rotating with a electric field. Optimal coherent control of the rotational motion of diatomic molecules can be achieved by manipulating the nonspreading wave packets with a circularly polarized electric field whose amplitude and frequency are changed adiabatically.