Precision Test of Mass Ratio Variations with Lattice-Confined Ultracold Molecules

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We propose a precision measurement of time variations of the proton-electron mass ratio using ultracold molecules in an optical lattice. Vibrational energy intervals are sensitive to changes of the mass ratio. In contrast to measurements that use hyperfine-interval-based atomic clocks, the scheme discussed here is model-independent and does not require separation of time variations of different physical constants. The possibility of applying the zero-differential-Stark-shift optical lattice technique is explored to measure vibrational transitions at high accuracy.
4 pages, 4 figures

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Atomic Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/193407

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0708.1806
 http://arxiv.org/abs/0708.1806
 Phys.Rev.Lett.100:043201,2008
 doi:10.1103/PhysRevLett.100.043201

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arXiv