Volume 107, Number 6, September 2014
|Number of page(s)||5|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||09 September 2014|
Switching current distributions in Josephson junctions at very low temperatures
1 Physics & Computer Science, Wilfrid Laurier University - Waterloo, Ontario, Canada
2 Dipartimento di Fisica and MINAS- Lab, Università di Roma “Tor Vergata” - I-00133 Roma, Italy
3 Department of Applied Science, University of California - Davis, CA 95616, USA
Received: 4 April 2014
Accepted: 22 August 2014
Swept bias experiments carried out on Josephson junctions yield the distributions of the probabilities of early switching from the zero-voltage state. Kramers' theory of the thermally activated escape from a one-dimensional potential is well known to fall short of explaining such experiments when the junctions are at millikelvin temperatures. We propose a simple revision of the theory which is shown to give extremely good agreement with experimental data.
PACS: 74.50.+r – Tunneling phenomena; Josephson effects / 85.25.Cp – Josephson devices / 03.67.Lx – Quantum computation architectures and implementations
© EPLA, 2014
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.