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Showing 1–8 of 8 results
Advanced filters: Author: Francesco Borsoi Clear advanced filters

  • Understanding the ground state (GS) phase transitions in the quantum tunneling regime of a superconducting system is important for future qubit devices. Here, Shen, Heedt and Borsoi et al. report distinct types of fermion parity GS transitions as a function of magnetic field and gate voltages in a Coulomb-blockaded InSb–Al island.

    • Jie Shen
    • Sebastian Heedt
    • Leo P. Kouwenhoven
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-8

  • Measuring the transmission phase of a quantum dot is crucial for the read-out of future topological qubits based on nanowire networks but has not been established yet. Here, the authors demonstrate interferometric read-out of the transmission phase in a nanowire-based architecture.

    • Francesco Borsoi
    • Kun Zuo
    • Sebastian Heedt
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-6

  • Hole spin qubits in germanium are well suited for fast, electrically driven gates with high fidelity, but scaling to large qubit arrays remains challenging. Here the authors demonstrate a 10-spin qubit array with gate fidelities exceeding 99%, revealing mechanisms for uniform and scalable qubit control.

    • Valentin John
    • Cécile X. Yu
    • Menno Veldhorst
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-7

  • Advanced fabrication techniques enable a wide range of quantum devices, such as the realization of a topological qubit. Here, the authors introduce an on-chip fabrication technique based on shadow walls to implement topological qubits in an InSb nanowire without fabrication steps such as lithography and etching.

    • Sebastian Heedt
    • Marina Quintero-Pérez
    • Leo P. Kouwenhoven
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-9

  • An efficient control strategy is designed for quantum dot arrays, drawing inspiration from classical semiconductor technology. A two-dimensional array of 16 semiconductor quantum dots is operated using only a few shared control lines.

    • Francesco Borsoi
    • Nico W. Hendrickx
    • Menno Veldhorst
    ResearchOpen Access
    Nature Nanotechnology
    Volume: 19, P: 21-27

  • The difficulty in obtaining a superconducting gap free of subgap states has hindered progress with hybrid superconductor-semiconductor devices in germanium. Here, this challenge is addressed by using a germanosilicide parent superconductor to contact high mobility planar germanium, facilitating scalable quantum information processing.

    • Alberto Tosato
    • Vukan Levajac
    • Giordano Scappucci
    ResearchOpen Access
    Communications Materials
    Volume: 4, P: 1-9