CaltechAUTHORS
  A Caltech Library Service

Tunable Josephson π junctions without Coulomb blockade

Haim, Arbel (2019) Tunable Josephson π junctions without Coulomb blockade. . (Unpublished) http://resolver.caltech.edu/CaltechAUTHORS:20190429-075854330

[img] PDF - Submitted Version
See Usage Policy.

1138Kb

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:20190429-075854330

Abstract

We study a Josephson junction between two time-reversal-invariant topological superconductors. We show this system goes through a series of multiple transitions between a 0-junction phase, where the free energy has its minimum for a superconducting phase difference of zero, and a π-junction phase, where the free energy has its minimum for a superconducting phase difference of π. These transitions occur in the absence of Coulomb blockade or magnetic impurities. Rather, they are driven by the spin-orbit coupling in the junction, and can be probed, for example, by measuring the tunneling density of states or the critical current as a function of the junction's length or its Fermi velocity.


Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription
https://arxiv.org/abs/1902.03248arXivDiscussion Paper
Alternate Title:Tunable Josephson pi junctions without Coulomb blockade
Additional Information:I benefited from discussions with L. Arrachea, F. von Oppen, Y. Oreg, and A. Stern.
Group:IQIM, Institute for Quantum Information and Matter, Walter Burke Institute for Theoretical Physics
Record Number:CaltechAUTHORS:20190429-075854330
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20190429-075854330
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:95061
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:29 Apr 2019 15:56
Last Modified:09 Jul 2019 20:36

Repository Staff Only: item control page