A cryogenic ion trap system for quantum logic spectroscopy of highly charged ions von Tobias Leopold

Opt-81: T. Leopold: A cryogenic ion trap system for quantum logic spectroscopy of highly charged ions 188 S., 83 Abb., 14 Tab., ISBN 978-3-95606-418-0, 2018 Euro 21,50 Within this thesis, a new experimental apparatus is presented, which was specifically designed for optical frequency metrology of highly charged ions. The necessary cooling and quantum logic protocols are based on coherent control of beryllium ions. A cryogenic ion trap system was designed and set up including a novel Paul trap adapted to cryogenic operation. The apparatus was optimised and characterised regarding mechanical vibrations and low temperature performance.