Description: Frequency is the most accurately measured quantity and precision frequency measurements offers us an opportunity to look for a possible time variation of such fundamental constants as the fine structure constant alpha and the electron-to-proton mass ratio. Recent progress in the area improve constraints on time variation of alpha to the level of 10^{-16}. I shall review situation in astrophysical observations. In my talk I will consider also recent precision frequency measurements. To set a constraint on fundamental constants one has to understand how frequencies of atomic and molecular transitions depend on alpha, me/mp etc. This question will be also discussed in detail.

Savely Karshenboim (Max-Planck-Institut, Garching & Pulkovo Observatory, Saint Petersburg)

If available you can check seminar slides here on INDICO. Complete LNGS seminar list (including slides) is available at:
http://www.lngs.infn.it/lngs_infn/contents/lngs_en/research/experiments_scientific_info/conferences_seminars/seminars
URL: https://agenda.infn.it/conferenceDisplay.py?confId=4824