Superconducting circuits for quantum computation and communication

3 11/2014

Monday, 03 Nov. 2014, 17:30 - 19:00

Presenter: Andrew Cleland
Host: Peter Rabl
Where: Lise-Meitner-Hörsaal, 1. Stck., Strudelhofgasse 4, Wien


Superconducting quantum circuits have recently advanced to the point where single qubit and two qubit quantum gates perform above the level needed for fault-tolerant computing. This opens the door for the experimental implementation of quantum error correction circuits such as the surface code, and promises the eventual development of superconducting quantum memories, and possibly superconducting quantum computers.  In addition, recent advances in optomechanics promise the coherent translation of information between the microwave and optical domains. This might enable the coupling of superconducting circuits to optical signals, thus allowing the construction of multi-node optical quantum networks, in which the individual nodes perform quantum error correction and serve as quantum memories, while information is transmitted through optical fibers. I will sketch out some aspects of these ideas, trying to give a flavor of the current state of the art in this rapidly evolving area.