Formerly "European Superconductivity News Forum (ESNF)"
Joint publication of the IEEE Council on Superconductivity (CSC) and
the European Society for Applied Superconductivity (ESAS), with a cooperation of Editors from Asia, Australia, and New Zealand

    You are here

    • You are here:
    • Home > Superconducting Qubits Are Getting Serious

Superconducting Qubits Are Getting Serious

Regularly Updated Latest News, Quarterly
Published Papers, Preprints & Presentations

Superconducting Qubits Are Getting Serious

December 12, 2011 (HP44).  We would like to attract the attention of our readers interested in quantum computing to the paper by Hanhee Paik et al, a team from Yale University, Univ. of Chicago, University of Maryland and Raytheon BBN Technologies, which appeared this week in Phys. Rev. Lett. 107, 240501 (2011) .  The authors observed high coherence and stability (T1 up to 60 microsec, T2 up to 20 microsec without spin echo) of Josephson junction qubits measured in a three-dimensionalresonant cavity, with no evidence for 1/f critical current noise.  The reported results suggest that the overall quality of Josephson junctions in these qubits will allow error rates of a few 10-4, approaching already the error correction threshold.
The significance of this work for quantum computing is explained in the Viewpoint by Matthias Steffens (IBM Research Center, Yorktown Heights) which appeared in Physics4, 103 – published on December 5, 2011 (DOI: 10:1103/Physics.4.103).
The SNF had 1,528 visitors in the month of September 2017,
and has had 144,167 visitors 
since its inception on July 15, 2007.