Quantum optics with trapped ions – from single ion heat engines to ions in vortex laser fields (Prof. F. Schmidt-Kaler)
- Date: Jun 20, 2017
- Time: 02:30 PM - 03:30 PM (Local Time Germany)
- Speaker: Prof. Dr. Ferdinand Schmidt-Kaler
- Institut für Physik, Johannes Gutenberg Universität Mainz, Arbeitsgruppe Cold Ions and Experimental Quantum Information
- Room: Herbert Walther Lecture Hall
- Host: MPQ
However, the model system of a trapped ion crystal may be employed for a wealth of applications: We investigate genuine solid-state effects such as defect formation [1]. We use single ultra-cold ions extracted from the trap to deterministically dope solids or sense structure at the nm-scale [2]. We operate a single ion heat engine [3] truly at the nano scale,with potential of reaching the quantum regime. We position single trapped ions in vortex light fields with orbital angular momentum and prove novel selection rules [4]. I describe the most recent results from the Mainz ion-trapping group and future perspectives.
Fig: Segment micro ion trap for quantum processing with 40Ca+ ions
References:
[1]
Ulm, et al., "Observation of the Kibble-Zurek scaling law for defect
formation in ion crystals", Nat. Comm. 4, 2290 (2013)
[2]
Jacob, et al., "Transmission Microscopy with Nanometer Resolution Using a
Deterministic Single Ion Source ", PRL 117, 043001 (2016)
[3]
Roßnagel, et al., "A single-atom heat engine", Science 352, 325
(2016)
[4]
Schmiegelow et al., "Transfer of optical orbital angular momentum to a
bound electron", Nat. Comm. 7, 12998 (2016)