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Sensitivity of microwave and FIR spectra to variation of fundamental constants

Published online by Cambridge University Press:  21 October 2010

M. G. Kozlov ,
A. V. Lapinov  and
S. A. Levshakov
M. G. Kozlov
Affiliation:
Petersburg Nuclear Physics Institute, Gatchina, 188300, Russia email: [email protected]
A. V. Lapinov
Affiliation:
Institute of Applied Physics, Ulyanova Str. 46, Nizhni Novgorod, 603950, Russia
S. A. Levshakov
Affiliation:
Ioffe Physical-Technical Institute, Politekhnicheskaya Str. 26, St. Petersburg, 194021, Russia
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Microwave and far infrared (FIR) spectra of atoms and molecules are in general more sensitive to the variation of the fundamental constants than optical spectra. For example, FIR transitions between levels of the ground state multiplet 3PJ of Carbon-like ions are sensitive to α-variation, (Levshakov et al. (2008)). Moreover, sensitivities of the transitions (1-0) and (2-1) are different, (Kozlov et al. (2008)). This allows to study α-variation by comparing apparent redshifts for these two transitions of the same ion and significantly reduce systematic errors from the Doppler noise.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Highlights H15: Highlights of Astronomy , November 2009 , pp. 324
Copyright
Copyright © International Astronomical Union 2010

References

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