Seminars

On an irregular basis various Special Seminars take place at the MPQ. The seminars are organized by scientists of our divisions, administration or staff representatives. The location will be announced with the event.

New quantum SI units and fundamental constants (Dr. Savely Karshenboim)

New quantum SI units and fundamental constants

Date: May 20, 2019
Time: 02:00 PM (Local Time Germany)
Speaker: Dr. Savely Karshenboim
Laser Spectroscopy Division, MPQ
Location: Max-Planck-Institut für Quantenoptik
Room: Herbert Walther Lecture Hall

The International system of units, SI, has just been changed once again. The new definitions, which concern the kilogram, ampere, kelvin, and mole, are to come in force on May, 20. Similarly to the definition of the metre in terms of the speed of light, those four units are now defined in the terms of exact adopted values of fundamental constants, such as the elementary charge, Planck, Boltzmann, and Avogadro constants. [more]