Precision

Spectrally narrow optical transitions in trapped ions provide highly stable and accurate references for optical frequency standards. Due to low sensitivity to external perturbations, the 1S03P0 clock transition in 27Al+ ions is well suited for time keeping. The lack of a practical closed transition for cooling and state detection can be overcome by simultaneously trapping a logic ion (here 40Ca+ ), that can be directly cooled.

We aim to investigate quantum logic schemes for reliably reading out the quantum state of the clock ion.

Project members

Michael Guggemos, Milena Guevara-Bertsch, Christian Roos, and Rainer Blatt

 

Former project members

Dr. Óscar Andrey Herrera