Reference : Transport properties of coupled Majorana bound states in the Coulomb blockade regime
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
Physics and Materials Science
http://hdl.handle.net/10993/42613
Transport properties of coupled Majorana bound states in the Coulomb blockade regime
English
Ekström, Carl Johan Ingvar mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
Recher, Patrik [Technical University of Braunschweig > Institute of Mathematical Physics]
Schmidt, Thomas [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
13-May-2020
Physical Review. B, Condensed Matter and Materials Physics
American Physical Society
Yes (verified by ORBilu)
1098-0121
1550-235X
Woodbury
MD
[en] Majorana bound states ; Quantum transport
[en] Topologically protected qubits based on nanostructures hosting Majorana bound states (MBSs) hold great promise for fault-tolerant quantum computing. We study the transport properties of nanowire networks hosting MBSs with a focus on the effects of the charging energy and the overlap between neighboring MBSs in short mesoscopic samples. In particular, we investigate structures hosting four MBSs such as T junctions and Majorana boxes. Using a master equation in the Markovian approximation, we discuss the leading transport processes mediated by the MBSs. Single-electron tunneling and processes involving creation and annihilation of Cooper pairs dominate in the sequential-tunneling limit. In the cotunneling regime the charge in the MBSs is fixed and transport is governed by transitions via virtual intermediate states. Our results show that four-terminal measurements in the T junction and Majorana box geometries can be useful tools for the characterization of the properties of MBSs with finite overlaps and charging energy.
Fonds National de la Recherche - FnR ; Hannover-Braunschweig science cooperation QUANOMET ; DFG-EXC 2123, Quantum Frontiers
Researchers
http://hdl.handle.net/10993/42613

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