Seminar
Tuesday, 05 January, 2010
Group seminar LMU: Ultracold strontium for optical atomic clocks and precision metrology
Tuesday, 05.01.2010 10 a.m. (s.t.) in H107, Fakultät für Physik LMU
Sebastian Blatt, AMO Physics & Precision Measurement Group, JILA
In the last few years, ultracold alkaline earths have attracted much experimental and theoretical attention. Narrow intercombination transitions in fermionic 87-Sr have been successfully used to develop a new blackbody-limited optical atomic frequency standard whose accuracy of 1 x 10-16 has surpassed the best Cs primary standards by a factor of four. This standard is a new tool for coherent light-matter interaction at the second timescale that has been used to test fundamental physical principles and for studying atom-atom interactions with high precision. Progress towards preparing even colder samples of bosonic 88-Sr is also presented.