Scientific Report on

Charge Transfer meets Circuit Quantum Electrodynamics

29 June to 3 July, 2015

at the Max Planck-Institut für Physik komplexer Systeme Dresden

We are glad to report on this successful workshop that addressed the rapidly growing field of nonlinear mesoscopic devices strongly coupled to quantum resonators. The workshop gathered for the first time most of the main players in this emerging field of research, as well as interested newcomers. Almost all invited speakers accepted to come right away, even the busiest ones, showing how timely the event seemed to be. At the forefront of research in this new direction, we had talks from the main actors of four types of mesoscopic devices that one can now couple to well-controlled electromagnetic modes: tunnel junctions (Ankerhold, Clerk, Hofheinz, Nazarov, Portier, Rimberg . . .), single charges or spin (Flindt, Kontos, Petta, Samuelsson, Wallraff . . .), Andreev states (Bouchiat, Goffman . . .) and mechanical oscillators (Sillanpää, Steele . . .). We also had talks from leading researchers in related fields, such as Astafiev, Delsing, Devoret, Hakonen, Leek . . .

The newcomers were either senior researchers who work on related fields and were interested to learn about this new topic, or junior researchers who appear to have benefited a lot from attending the workshop. There were many questions during the talks and the participants benefited from the social events to foster new collaborations. Besides, the participants appreciated the environment of MPIKS, and in particular the wonderful organization by Frau Katrin Lantsch very much.

The workshop has decisively bolstered this interesting and emerging field. We hope that the newcomers will benefit from what they have learned and will start new projects in this direction. It is now evident that well-controlled microwave modes in the quantum regime offer a new tool to explore mescoscopic physics in a variety of regimes and systems.

Miles Blencowe, Benjamin Huard and Björn Kubala (scientific coordinators)