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Q: Fachverband Quantenoptik und Photonik

Q 35: Quantum Optics: Cavity and Waveguide QED II

Q 35.6: Vortrag

Mittwoch, 8. März 2023, 15:45–16:00, E001

Controlling the spontaneous emission of trapped ions for quantum applications — •Giovanni Cerchiari, Yannick Weiser, Lorenz Panzl, and Rainer Blatt — Universität Innsbruck, Technikerstrasse 25/4, A-6020 Innsbruck, Austria

Trapped atomic ions are one of the most prominent platforms for bridging the gap between fundamental quantum physics research and quantum technology applications. In ions, laser excitation is used to encode quantum information into the electronic excited states, which, however, are unstable and can spontaneously relax by photon emission. The spontaneous emission of photon is recognized as one of the key constraints for the long-term storage of information and for the encoding process. In this contribution, I will explain why we believe that spontaneous emission is not a fundamental limit, but rather a phenomenon that may be controlled and suppressed to enhance quantum technology.