Publication Details:
Journal or Publication Title:
Armenian Journal of Physics=Ֆիզիկայի հայկական հանդես
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Title:
Modeling of dc SQUIDs With Topologically Nontrivial Barriers
Creator:
E. M. Benecha ; Yu. M. Shukrinov ; I. R. Rahmonov ; Botha, A. E. ; N. Ananikian
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
Subject:
Physics ; Quantum mechanics, field theories, and special relativity
Coverage:
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.