Publication Details:

Established in 2008

Journal or Publication Title:

Armenian Journal of Physics=Ֆիզիկայի հայկական հանդես

Date of publication:

2019

Volume:

12

Number:

3

ISSN:

1829-1171

Official URL:

Corporate Creators:

Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Dubna, 141980, Russia ; A. I. Alikhanyan National Scientific Laboratory, Yerevan, Armenia ; Umarov Physical Technical Institute, TAS, Dushanbe, 734063 Tajikistan ; Dubna State University, Dubna 141982, Russia ; Department of Physics, University of South Africa, Florida, 1710, South Africa

Coverage:

226-232

Abstract:

We study the behavior of DC-SQUIDs with topologically nontrivial barriers and compare the results with the trivial case. The current voltage characteristics and critical current as a function of the external magnetic flux for the dc SQUID with trivial and nontrivial barriers is calculated. We have shown the shift of the so-called beating solutions at the resonance frequency of DC-SQUID with nontrivial barriers. We find that increasing the number of Josephson junctions N reduces the size of the voltage steps, with the effect more pronounced in the case of SQUIDs containing nontrivial barriers. Therefore, tuning N constitutes a convenient way of changing the junction parameter βc , which can in turn be used to optimize the Majorana character of SQUIDS. These results are important from the experimental perspective since they provide a way of detecting and manipulating the Majorana bound states.

Date created:

2019-10-17

Format:

pdf

Identifier:

oai:arar.sci.am:23573

Location of original object:

ՀՀ ԳԱԱ Հիմնարար գիտական գրադարան