International Conference on Precision Physics and Fundamental Physical Constants (FFK-2015)

Session

Fundamental Constants

13 Oct 2015, 16:30

Kis terem (Small conference room) (Hungarian Academy of Sciences)

Conveners

Fundamental Constants

• Claudio Lenz Cesar (Universidade Federal do Rio de Janeiro)

25. Recent progress in determination of fundamental constants

Prof. Savely Karshenboim (MPQ and Pulkovo Observatory)

13/10/2015, 16:30

I will present results of the recent evaluation of the fundamental constants by CODATA. I will in particular discuss the general structure of the data as well as progress in the determination of the most important constants, such as the Rydberg constant, the proton charge radius, the electron-to-proton mass ratio, the fine structure constant, the Planck and Avogadro constant, the elementary charge.

15. The New System Of Units Based On Fundamental Physical Constants. The Next Approach

Dr Waldemar Nawrocki (Poznan University of Technology, Poznan, Poland)

13/10/2015, 17:15

The possibility or even necessity of revising definitions of some of the base units of the present SI has been discussed over the past 25 years. Taking advantage of recent achievements of physical science it is possible to construct quantum standards of units which use fundamental physical constants or atomic constants. The last 25th General Conference of Weights and Measures (2014)...

10. The use of precise molecular line spectroscopy in a search for m_e/m_p variations

Dr Alexander Lapinov (Institute of Applied Physics of the RAS)

13/10/2015, 17:45

We report results of precise laboratory spectroscopy for a set of astropysically important species carried out at the Institute of Applied Physics of the RAS over the last years. The investigations are based on Lamb-dip measurements at mm$-$sub-mm wavelengths with the developed sub-Doppler spectrometer. In particular, from a comparison of precise radio astronomical and laboratory...