Trapped electron coupled to superconducting devices |
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Authors: | P Bushev D Bothner J Nagel M Kemmler K B Konovalenko A Lörincz K Ilin M Siegel D Koelle R Kleiner F Schmidt-Kaler |
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Institution: | 1. Physikalisches Institut, Karlsruher Institut für
Technologie, Wolfgang-Gaede-Str.
1, 76131, Karlsruhe, Germany 2. Physikalisches Institut and Center for Collective Quantum
Phenomena, Universit?t Tübingen, Auf der Morgenstelle 14, 72076, Tübingen, Germany 3. Institut für Mikro- und Nanoelektronische Systeme, Karlsruher
Institut für Technologie, Hertzstrasse 16, 76187, Karlsruhe, Germany 4. Institut für Physik, QUANTUM, Universit?t Mainz, Staudingerweg 7, 55128, Mainz, Germany
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Abstract: | We propose to couple a trapped single electron to superconducting structures located at a variable distance from the electron. The electron is captured in a cryogenic Penning trap using electric fields and a static magnetic field in the tesla range. Measurements on the electron will allow investigating the properties of the superconductor such as vortex structure, damping and decoherence. We propose to couple a superconducting microwave resonator to the electron in order to realize a circuit QED-like experiment, as well as to couple superconducting Josephson junctions or superconducting quantum interferometers (SQUIDs) to the electron. The electron may also be coupled to a vortex which is situated in a double well potential, realized by nearby pinning centers in the superconductor, acting as a quantum mechanical two level system that can be controlled by a transport current tilting the double well potential. The electron may also be coupled to a single vortex, thus hybridizing an elementary excitation of a superconductor and an elementary particle. |
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