Uni-Logo Koordinator des Seminars:
Prof. Dr. F. Schmidt-Kaler
Institut für Physik
Johannes Gutenberg-Universität
Jo Gu-Uni Mainz

Seminar über Quanten-, Atom- und Neutronenphysik (QUANTUM)

Institut für Physik

Donnerstag, den 10.01.2019 um 11:00 Uhr s.t. im Medienraum (03-431) des Instituts für Physik, Staudingerweg 7

Sondertermin und -raum

Development and characterization of a transportable aluminum ion quantum logic optical clock setup

Dr. Stephan Hannig, PTB Braunschweig

Transportable optical clocks allow for chronometric leveling between distant locations which are not connected by a direct line of sight but via length stabilized optical fiber. Moreover, they facilitate frequency comparisons between distant stationary clocks via subsequent side-by-side comparisons without the necessity of a long-range fiber connection. 27Al+ has one of the smallest blackbody radiation shifts, small linear and quadratic Zeeman shifts and a negligible quadrupole shift, which makes it a candidate for a highly accurate optical clock. This talk reports on a transportable Al+ optical clock setup with an estimated apparatus-related systematic fractional frequency uncertainty in the 10^-18 range, which paves the way towards chronometric levelling with few cm resolution.

Kontakt: Elvira Stuck-Kerth, stuckker@uni-mainz.de