Reference : Transport properties of Majorana bound states networks in the Coulomb blockade regime
E-prints/Working papers : Already available on another site
Physical, chemical, mathematical & earth Sciences : Physics
Physics and Materials Science
http://hdl.handle.net/10993/42613
Transport properties of Majorana bound states networks 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 mailto [Technical University of Braunschweig > Institute of Mathematical Physics]
Schmidt, Thomas mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
8-Nov-2019
1
14
No
[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 network 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
https://arxiv.org/abs/1911.03115

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