Rotational cooling of molecules using lamps

摘要

We investigate theoretically the application of tailored incoherent far-infrared fields in rotational cooling of translationally cold polar molecules. The cooling schemes are based on a far-infrared light field inducing selected rotational transitions in combination with laser excitation of a single rovibrational transition. The cooling schemes are effective on a timescale shorter than the typical unperturbed trapping time in ion traps and comparable to the trapping times that can be obtained for neutral molecules.