Testing the time-invariance of fundamental constants using microwave spectroscopy on cold diatomic radicals

H.L. Bethlem; W.M.G. Ubachs

doi:10.1039/b819099b

Testing the time-invariance of fundamental constants using microwave spectroscopy on cold diatomic radicals

H.L. Bethlem, W.M.G. Ubachs

Quantum Metrology & Laser Applications

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Abstract

The recently demonstrated methods to cool and manipulate neutral molecules offer new possibilities for precision tests of fundamental physics theories. We here discuss the possibility of testing the time-invariance of fundamental constants using near degeneracies between rotational levels in the fine structure ladders of molecular radicals. We show that such a degeneracy occurs between the J = 6, Ω = 1 and the J = 8, Ω = 0 levels of the various natural isotopomers of carbon monoxide in its a

Original language	English
Pages (from-to)	25-36
Journal	Faraday Discussions
Volume	142
DOIs	https://doi.org/10.1039/b819099b
Publication status	Published - 2009

Bibliographical note

Times Cited: 2 Cold and Ultracold Molecules Conference 2009 APR 15-17, 2009 Durham Univ, Durham, ENGLAND

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N2 - The recently demonstrated methods to cool and manipulate neutral molecules offer new possibilities for precision tests of fundamental physics theories. We here discuss the possibility of testing the time-invariance of fundamental constants using near degeneracies between rotational levels in the fine structure ladders of molecular radicals. We show that such a degeneracy occurs between the J = 6, Ω = 1 and the J = 8, Ω = 0 levels of the various natural isotopomers of carbon monoxide in its a

AB - The recently demonstrated methods to cool and manipulate neutral molecules offer new possibilities for precision tests of fundamental physics theories. We here discuss the possibility of testing the time-invariance of fundamental constants using near degeneracies between rotational levels in the fine structure ladders of molecular radicals. We show that such a degeneracy occurs between the J = 6, Ω = 1 and the J = 8, Ω = 0 levels of the various natural isotopomers of carbon monoxide in its a

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M3 - Article

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VL - 142

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JO - Faraday Discussions

JF - Faraday Discussions

ER -

Testing the time-invariance of fundamental constants using microwave spectroscopy on cold diatomic radicals

Abstract

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