Topological Josephson Junction in Transverse Magnetic Field

We consider Majorana zero modes in a Josephson junction on top of a topological insulator in transverse magnetic field. Majorana zero modes reside at periodically located nodes of Josephson vortices. We find that hybridization of these modes is prohibited by symmetries of the problem at vanishing ch...

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Bibliographic Details
Published in:JETP letters 2022-12, Vol.116 (12), p.891-895
Main Authors: Backens, S., Shnirman, A., Makhlin, Yu
Format: Article
Language:English
Subjects:
Atomic
Biological and Medical Physics
Biophysics
Chemical potential
Condensed Matter
Control methods
Data processing
Josephson junctions
Magnetic fields
Molecular
Optical and Plasma Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
Quantum Information Technology
Quantum phenomena
Solid State Physics
Spintronics
Topological insulators
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Description
Summary:We consider Majorana zero modes in a Josephson junction on top of a topological insulator in transverse magnetic field. Majorana zero modes reside at periodically located nodes of Josephson vortices. We find that hybridization of these modes is prohibited by symmetries of the problem at vanishing chemical potential, which ensures better protection of zero modes and yields methods to control the tunnel coupling between Majorana modes for quantum information processing applications.
ISSN:0021-3640
1090-6487
DOI:10.1134/S0021364022602561