Parity-preserving and magnetic field–resilient superconductivity in InSb nanowires with Sn shells

M Pendharkar, B Zhang, H Wu, A Zarassi, P Zhang… - Science, 2021 - science.org
Improving materials used to make qubits is crucial to further progress in quantum information
processing. Of particular interest are semiconductor-superconductor heterostructures that …

Quasiparticle poisoning of Majorana qubits

T Karzig, WS Cole, DI Pikulin - Physical Review Letters, 2021 - APS
Qubits based on Majorana zero modes are a promising path towards topological quantum
computing. Such qubits, though, are susceptible to quasiparticle poisoning which does not …

Yu-shiba-rusinov qubit

A Mishra, P Simon, T Hyart, M Trif - PRX Quantum, 2021 - APS
Magnetic impurities in s-wave superconductors lead to spin-polarized Yu-Shiba-Rusinov
(YSR) in-gap states. Chains of magnetic impurities offer one of the most viable routes for the …

Photon-assisted tunnelling of zero modes in a Majorana wire

DMT van Zanten, D Sabonis, J Suter, JI Väyrynen… - Nature Physics, 2020 - nature.com
Hybrid nanowires with proximity-induced superconductivity in the topological regime host
Majorana zero modes at their ends. Networks of such structures can produce topologically …

Full parity phase diagram of a proximitized nanowire island

J Shen, GW Winkler, F Borsoi, S Heedt, V Levajac… - Physical Review B, 2021 - APS
We measure the charge periodicity of Coulomb blockade conductance oscillations of a
hybrid InSb-Al island as a function of gate voltage and parallel magnetic field. The …

Supercurrent transport through -periodic full-shell Coulomb islands

D Razmadze, RS Souto, ECT O'Farrell, P Krogstrup… - Physical Review B, 2024 - APS
We experimentally investigate supercurrent through Coulomb islands, where island and
leads are fabricated from semiconducting nanowires with fully surrounding superconducting …

Majorana superconducting qubit

C Schrade, L Fu - Physical Review Letters, 2018 - APS
We propose a platform for universal quantum computation that uses conventional s-wave
superconducting leads to address a topological qubit stored in spatially separated Majorana …

Fusion rules in a Majorana single-charge transistor

R Seoane Souto, M Leijnse - SciPost Physics, 2022 - scipost.org
A demonstration of the theoretically predicted non-abelian properties of Majorana bound
states (MBSs) would constitute a definite proof of a topological superconducting phase …

Topological superconductivity in planar Josephson junctions: Narrowing down to the nanowire limit

F Setiawan, A Stern, E Berg - Physical Review B, 2019 - APS
We theoretically study topological planar Josephson junctions (JJs) formed from spin-orbit-
coupled two-dimensional electron gases (2DEGs) proximitized by two superconductors and …

Electronic transport in double-nanowire superconducting islands with multiple terminals

A Vekris, JC Estrada Saldaña, T Kanne… - Nano Letters, 2022 - ACS Publications
We characterize in situ grown parallel nanowires bridged by a superconducting island. The
magnetic-field and temperature dependence of Coulomb blockade peaks measured across …