Ultracold molecules: new probes on the variation of fundamental constants
Other Condensed Matter
2009-05-15 v1
Abstract
Ultracold molecules offer brand new opportunities to probe the variation of fundamental constants with unprecedented sensitivity. This paper summarizes theoretical background and current constraints on the variation of fine structure constant and electron-to-proton mass ratio, as well as proposals and experimental efforts to measure the variations based on ultracold molecules. In particular, we describe two novel spectroscopic schemes on ultracold molecules which have greatly enhanced sensitivity to fundamental constants: resonant scattering near Feshbach resonances and spectroscopy on close-lying energy levels of ultracold molecules.
Keywords
Cite
@article{arxiv.0901.3846,
title = {Ultracold molecules: new probes on the variation of fundamental constants},
author = {Cheng Chin and V. V. Flambaum and M. G. Kozlov},
journal= {arXiv preprint arXiv:0901.3846},
year = {2009}
}