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Fidelity and visibility reduction in Majorana qubits by entanglement with environmental modes
Morten I. K. Munk, Reinhold Egger, Karsten Flensberg
We study the dynamics and readout of topological qubits encoded by zero-energy Majorana bound states in a topological superconductor. We take into account bosonic modes due to the…
Coulomb-interaction-induced Majorana edge modes in nanowires
Tommy Li, Michele Burrello, Karsten Flensberg
We show that Majorana edge modes appear in a strongly correlated phase of semiconducting nanowires with discrete rotational symmetry in the cross section. These modes exist in the…
Flux-induced Majorana modes in full-shell nanowires
S. Vaitiekėnas, M. -T. Deng, P. Krogstrup +1
We demonstrate a novel means of creating Majorana zero modes using magnetic flux applied to a full superconducting shell surrounding a semiconducting nanowire core, unifying approa…
Topological superconductivity in full shell proximitized nanowires
Roman M. Lutchyn, Georg W. Winkler, Bernard van Heck +4
We consider a new model system supporting Majorana zero modes based on semiconductor nanowires with a full superconducting shell. We demonstrate that, in the presence of spin-orbit…
Coulomb blockade of a nearly-open Majorana island
Dmitry I. Pikulin, Karsten Flensberg, Leonid I. Glazman +2
We consider the ground-state energy and the spectrum of the low-energy excitations of a Majorana island formed of topological superconductors connected by a single-mode junction of…
Four-Majorana qubit with charge readout: dynamics and decoherence
Tommy Li, William A. Coish, Michael Hell +2
We present a theoretical analysis of a Majorana-based qubit consisting of two topological superconducting islands connected via a Josephson junction. The qubit is operated by elect…