Affiliation: | 1.Max Planck Institute for Quantum Optics, Hans-Kopfermann-Strasse 1, 85748 Garching, Germany;2.Department of Experimental Physics, Faculty of Physics, Ludwig-Maximilians-Universität München, Am Coulombwall 1, 85748 Garching, Germany;3.Institute of Automation and Electrometry SB RAS, 630090 Novosibirsk, Russia;4.Department of Physics, Novosibirsk State University, 630090 Novosibirsk, Russia |