期刊
MOLECULAR PHYSICS
卷 105, 期 11-12, 页码 1723-1731出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/00268970701466261
关键词
black-body radiation; precision measurements; absorption rate; light shift; cold polar molecules
In the perspective of the outstanding developments of high-precision measurements of fundamental constants using polar molecules related to ultimate checks of fundamental theories, we investigate the possibly counterproductive role of black-body radiation on a series of diatomic molecules which would be trapped and observed for long durations. We show that the absorption of black-body radiation at room temperature may indeed limit the lifetime of trapped molecules prepared in a well-defined quantum state. Several examples are treated, corresponding to pure rotational absorption, pure vibrational absorption or both. We also investigate the role of a black-body radiation-induced energy shift on molecular levels and how it could affect high-precision frequency measurements.
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