Trapped electron coupled to superconducting devices
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. When the vortex is trapped in the interferometer arms of a SQUID, this would allow its detection both by the SQUID and by the electron.
Keywords
Cite
@article{arxiv.1009.3425,
title = {Trapped electron coupled to superconducting devices},
author = {P. Bushev and D. Bothner and J. Nagel and M. Kemmler and K. B. Konovalenko and A. Loerincz and K. Ilin and M. Siegel and D. Koelle and R. Kleiner and F. Schmidt-Kaler},
journal= {arXiv preprint arXiv:1009.3425},
year = {2011}
}
Comments
13 pages, 5 figures