Berlin 2014 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 5: Quantum information: Atoms and ions I
Q 5.1: Gruppenbericht
Montag, 17. März 2014, 10:30–11:00, UDL HS3038
Group report: Wiring up charged particles — Dylan Gorman, Soenke Moeller, •Philipp Schindler, Sankar Sankaranarayanan, Anthony Ransford, Josselin Bernardoff, Ahmed Abdelrahman, Ishan Talukdar, Nikos Daniilidis, and Hartmut Haeffner — Deparment of Physics, University of California Berkeley, USA
We present our recent results on coupling trapped 40Ca+ ions to electronic circuits with the long term goal of realizing a scalable quantum information processor. Our experiment aims to couple single trapped ions to an LC-resonator. We see this as a first step towards a hybrid quantum information device combining the advantages of trapped ions and superconducting devices. As a first application we will cool the resonant mode of a superconducting high-quality resonant circuit by coupling it to a laser-cooled ion.
A second experiment aims to couple the motion of two distant ions via a conducting wire. As a prerequisite for the coupling process, we investigate the influence of the wire on a single trapped ion as the wire-ion distance is reduced. In order to realize this coupling at a single quantum level, noise processes originating from the surface of the ion traps need to be significantly reduced. We report on an experiment that reduces the heating rate due to surface contaminants by a factor of 50 after cleaning the surface.