Progress in superconductor-semiconductor topological Josephson junctions

Fuente: arXiv
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Main Authors: Schiela, William F., Yu, Peng, Shabani, Javad
Format: Preprint
Published: 2024
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author Schiela, William F.
Yu, Peng
Shabani, Javad
author_facet Schiela, William F.
Yu, Peng
Shabani, Javad
contents Majorana bound states (MBSs) are quasiparticles which are their own antiparticles. They are predicted to emerge as zero-energy modes localized at the boundary of a topological superconductor. No intrinsic topological superconductor is known to date. However, by interfacing conventional superconductors and semiconductors with strong spin--orbit coupling it is possible to create a system hosting topological states. Hence epitaxial superconductors and semiconductors have emerged as an attractive materials system with atomically sharp interfaces and broad flexibility in device fabrications incorporating Josephson junctions. We discuss the basics of topological superconductivity and provide insight on how to go beyond current state-of-the-art experiments. We argue that the ultimate success in realizing MBS physics requires the observation of non-Abelian braiding and fusion experiments.
format Preprint
id arxiv_https___arxiv_org_abs_2408_12749
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Progress in superconductor-semiconductor topological Josephson junctions
Schiela, William F.
Yu, Peng
Shabani, Javad
Mesoscale and Nanoscale Physics
Materials Science
Majorana bound states (MBSs) are quasiparticles which are their own antiparticles. They are predicted to emerge as zero-energy modes localized at the boundary of a topological superconductor. No intrinsic topological superconductor is known to date. However, by interfacing conventional superconductors and semiconductors with strong spin--orbit coupling it is possible to create a system hosting topological states. Hence epitaxial superconductors and semiconductors have emerged as an attractive materials system with atomically sharp interfaces and broad flexibility in device fabrications incorporating Josephson junctions. We discuss the basics of topological superconductivity and provide insight on how to go beyond current state-of-the-art experiments. We argue that the ultimate success in realizing MBS physics requires the observation of non-Abelian braiding and fusion experiments.
title Progress in superconductor-semiconductor topological Josephson junctions
topic Mesoscale and Nanoscale Physics
Materials Science
url https://arxiv.org/abs/2408.12749