Kline, J.
, Wang, H.
, Oh, S.
, Martinis, J.
and Pappas, D.
(2008),
Josephson phase qubit circuit for the evaluation of advanced tunnel barrier materials, Superconductor Science & Technology, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=33165
(Accessed March 13, 2025)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Josephson phase qubit circuit for the evaluation of advanced tunnel barrier materials
Published
Author(s)
, Haohua Wang, , John M. Martinis,
Abstract
We have found that crystalline Josephson junctions have critical current density control problems which decrease circuit yield. We present a qubit circuit designed to accommodate a factor-of-five variation in critical current density for the evaluation of advanced tunnel barrier materials for Josephson phase qubits. Using this circuit design, we compare the performance of qubits fabricated with MgO and Al2O3 advanced crystalline tunnel barriers to AlOx amorphous tunnel barrier qubits.Citation
Superconductor Science & Technology
Volume
22
Pub Type
Journals
Download Paper
Citation
Issues
If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.
Created November 21, 2008, Updated February 19, 2017